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Preliminary clinical data suggest that the incidence of nephrolithiasis is higher in patients receiving indinavir in combination with ritonavir than those receiving CRIXIVAN 800 mg q8h.
indinavir
ritonavir
EFFECT
Indinavir_ddi.xml
DDI-DrugBank.d97.s52
DDI-DrugBank.d97.s52.p0
Agents that are CYP3A4 inhibitors that have been found, or are expected, to increase plasma levels of EQUETROTM are the following: Acetazolamide, azole antifungals, cimetidine, clarithromycin(1), dalfopristin, danazol, delavirdine, diltiazem, erythromycin(1), fluoxetine, fluvoxamine, grapefruit juice, isoniazid, itraconazole, ketoconazole, loratadine, nefazodone, niacinamide, nicotinamide, protease inhibitors, propoxyphene, quinine, quinupristin, troleandomycin, valproate(1), verapamil, zileuton.
EQUETROTM
clarithromycin
MECHANISM
Carbamazepine_ddi.xml
DDI-DrugBank.d94.s4
DDI-DrugBank.d94.s4.p3
Lithium: Lithium toxicity has been reported in patients receiving lithium concomitantly with drugs which cause elimination of sodium, including ACE inhibitors.
lithium
ACE inhibitors
EFFECT
Enalapril_ddi.xml
DDI-DrugBank.d107.s16
DDI-DrugBank.d107.s16.p5
for adult-onset diabetics, dosage adjustment of hypoglycemic medications may be necessary during and after thiazide diuretic therapy;
hypoglycemic medications
thiazide diuretic
ADVISE
Hydroflumethiazide_ddi.xml
DDI-DrugBank.d17.s18
DDI-DrugBank.d17.s18.p0
Additive adverse effects resulting from cholinergic blockade may occur when LEVSIN is administered concomitantly with other antimuscarinics, amantadine, haloperidol, phenothiazines, monoamine oxidase (MAO) inhibitors, tricyclic antidepressants or some antihistamines.
LEVSIN
haloperidol
EFFECT
Hyoscyamine_ddi.xml
DDI-DrugBank.d142.s0
DDI-DrugBank.d142.s0.p2
When CANCIDAS is co-administered with inducers of drug clearance, such as efavirenz, nevirapine, phenytoin, dexamethasone, or carbamazepine, use of a daily dose of 70 mg of CANCIDAS should be considered
CANCIDAS
phenytoin
ADVISE
Caspofungin_ddi.xml
DDI-DrugBank.d350.s14
DDI-DrugBank.d350.s14.p2
Agents that have been found, or are expected to have decreased plasma levels in the presence of EQUETROTM due to induction of CYP enzymes are the following: Acetaminophen, alprazolam, amitriptyline, bupropion, buspirone, citalopram, clobazam, clonazepam, clozapine, cyclosporin, delavirdine, desipramine, diazepam, dicumarol, doxycycline, ethosuximide, felbamate, felodipine, glucocorticoids, haloperidol, itraconazole, lamotrigine, levothyroxine, lorazepam, methadone, midazolam, mirtazapine, nortriptyline, olanzapine, oral contraceptives(3), oxcarbazepine, Phenytoin(4), praziquantel, protease inhibitors, quetiapine, risperidone, theophylline, topiramate, tiagabine, tramadol, triazolam, valproate, warfarin(5) , ziprasidone, and zonisamide.
Acetaminophen
felodipine
NONE
Carbamazepine_ddi.xml
DDI-DrugBank.d94.s11
DDI-DrugBank.d94.s11.p61
Antihistamines may have additive effects with alcohol and other CNS depressants, e.g., hypnotics, sedatives, tranquilizers, antianxiety agents.
CNS depressants
antianxiety agents
NONE
Cyproheptadine_ddi.xml
DDI-DrugBank.d492.s1
DDI-DrugBank.d492.s1.p14
Population pharmacokinetic studies showed higher concentrations of cilostazol among patients concurrently treated with diltiazem, an inhibitor of C.P.A..
cilostazol
diltiazem
MECHANISM
Cilostazol_ddi.xml
DDI-DrugBank.d358.s2
DDI-DrugBank.d358.s2.p0
Phenytoin/Phenobarbital: The coadministration of phenytoin or phenobarbital will not affect plasma concentrations of vitamin D, but may reduce endogenous plasma levels of calcitriol/ergocalcitriol by accelerating metabolism.
Phenytoin
calcitriol
NONE
Calcitriol_ddi.xml
DDI-DrugBank.d384.s2
DDI-DrugBank.d384.s2.p4
Close supervision and careful adjustment of the dosage are required when nortriptyline hydrochloride is used with other anticholinergic drugs or sympathomimetic drugs.
nortriptyline hydrochloride
sympathomimetic drugs
ADVISE
Nortriptyline_ddi.xml
DDI-DrugBank.d202.s9
DDI-DrugBank.d202.s9.p1
The effects of medicinal products with similar properties such as inotropes milrinone, enoximone, amrinone, olprinone and cilostazol may be exacerbated by anagrelide.
milrinone
anagrelide
EFFECT
Anagrelide_ddi.xml
DDI-DrugBank.d75.s14
DDI-DrugBank.d75.s14.p4
Theophylline VIOXX 12.5, 25, and 50 mg administered once daily for 7 days increased plasma theophylline concentrations (AUC(0- )) by 38 to 60% in healthy subjects administered a single 300-mg dose of theophylline.
VIOXX
theophylline
MECHANISM
Rofecoxib_ddi.xml
DDI-DrugBank.d210.s27
DDI-DrugBank.d210.s27.p3
Phenytoin: If acitretin is given concurrently with phenytoin, the protein binding of phenytoin may be reduced.
Phenytoin
acitretin
NONE
Acitretin_ddi.xml
DDI-DrugBank.d353.s10
DDI-DrugBank.d353.s10.p0
Injection: Lorazepam injection, like other injectable benzodiazepines, produces depression of the central nervous system when administered with ethyl alcohol, phenothiazines, barbiturates, MAO inhibitors, and other antidepressants.When scopolamine is used concomitantly with injectable lorazepam, an increased incidence of sedation, hallucinations, and irrational behavior has been observed.
benzodiazepines
ethyl alcohol
EFFECT
Lorazepam_ddi.xml
DDI-DrugBank.d18.s1
DDI-DrugBank.d18.s1.p8
Experience with nonsteroidal anti-inflammatory drugs (NSAIDs) suggests the potential for interactions with furosemide and ACE inhibitors.
nonsteroidal anti-inflammatory drugs
furosemide
INT
Celecoxib_ddi.xml
DDI-DrugBank.d172.s7
DDI-DrugBank.d172.s7.p1
Even when an aminoglycoside and a penicillin-type drug are administered separately by different routes, a reduction in aminoglycoside serum half-life or serum levels has been reported in patients with impaired renal function and in some patients with normal renal function.
aminoglycoside
penicillin
MECHANISM
Kanamycin_ddi.xml
DDI-DrugBank.d57.s1
DDI-DrugBank.d57.s1.p0
No dose adjustment is necessary when Simulect is added to triple-immunosuppression regimens including cyclosporine, corticosteroids, and either azathioprine or mycophenolate mofetil.
Simulect
azathioprine
NONE
Basiliximab_ddi.xml
DDI-DrugBank.d544.s0
DDI-DrugBank.d544.s0.p2
Concomitant medications were grouped as ACE inhibitors, oral anticoagulants, calcium channel blockers, beta blockers, cardiac glycosides, inducers of CYP3A4, substrates and inhibitors of CYP3A4, substrates and inhibitors of P-glycoprotein, nitrates, sulphonylureas, loop diuretics, potassium sparing diuretics, thiazide diuretics, substrates and inhibitors of tubular organic cation transport, and QTc-prolonging drugs.
calcium channel blockers
loop diuretics
NONE
Dofetilide_ddi.xml
DDI-DrugBank.d558.s35
DDI-DrugBank.d558.s35.p21
Codeine in combination with other narcotic analgesics, general anesthetics, phenothiazines, tranquilizers, sedative-hypnotics, or other CNS depressants (including alcohol) has additive depressant effects.
Codeine
phenothiazines
EFFECT
Codeine_ddi.xml
DDI-DrugBank.d464.s0
DDI-DrugBank.d464.s0.p2
Quinidine, verapamil, amiodarone, propafenone, indomethacin, itraconazole, alprazolam, and spironolactone raise the serum digoxin concentration due to a reduction in clearance and/or in volume of distribution of the drug, with the implication that digitalis intoxication may result.
indomethacin
digoxin
MECHANISM
Digoxin_ddi.xml
DDI-DrugBank.d450.s2
DDI-DrugBank.d450.s2.p33
Apraclonidine should not be used in patients receiving MAO inhibitors..
Apraclonidine
MAO inhibitors
ADVISE
Apraclonidine_ddi.xml
DDI-DrugBank.d224.s0
DDI-DrugBank.d224.s0.p0
Additionally, BREVIBLOC should not be used to control supraventricular tachycardia in the presence of agents which are vasoconstrictive and inotropic such as dopamine, epinephrine, and norepinephrine because of the danger of blocking cardiac contractility when systemic vascular resistance is high.
BREVIBLOC
epinephrine
ADVISE
Esmolol_ddi.xml
DDI-DrugBank.d422.s15
DDI-DrugBank.d422.s15.p1
Thus, when ibuprofen and lithium are administered concurrently, subjects should be observed carefully for signs of lithium toxicity.
lithium
lithium
NONE
Ibuprofen_ddi.xml
DDI-DrugBank.d415.s15
DDI-DrugBank.d415.s15.p2
The action of the benzodiazepines may be potentiated by anticonvulsants, antihistamines, alcohol, barbiturates, monoamine oxidase inhibitors, narcotics, phenothiazines, psychotropic medications, or other drugs that produce CNS depression.
benzodiazepines
barbiturates
EFFECT
Estazolam_ddi.xml
DDI-DrugBank.d338.s1
DDI-DrugBank.d338.s1.p3
On the basis of the metabolism of bexarotene by cytochrome P450 3A4, ketoconazole, itraconazole, erythromycin, gemfibrozil, grapefruit juice, and other inhibitors of cytochrome P450 3A4 would be expected to lead to an increase in plasma bexarotene concentrations.
itraconazole
bexarotene
MECHANISM
Bexarotene_ddi.xml
DDI-DrugBank.d467.s2
DDI-DrugBank.d467.s2.p11
Agents that have been found, or are expected to have decreased plasma levels in the presence of EQUETROTM due to induction of CYP enzymes are the following: Acetaminophen, alprazolam, amitriptyline, bupropion, buspirone, citalopram, clobazam, clonazepam, clozapine, cyclosporin, delavirdine, desipramine, diazepam, dicumarol, doxycycline, ethosuximide, felbamate, felodipine, glucocorticoids, haloperidol, itraconazole, lamotrigine, levothyroxine, lorazepam, methadone, midazolam, mirtazapine, nortriptyline, olanzapine, oral contraceptives(3), oxcarbazepine, Phenytoin(4), praziquantel, protease inhibitors, quetiapine, risperidone, theophylline, topiramate, tiagabine, tramadol, triazolam, valproate, warfarin(5) , ziprasidone, and zonisamide.
EQUETROTM
citalopram
MECHANISM
Carbamazepine_ddi.xml
DDI-DrugBank.d94.s11
DDI-DrugBank.d94.s11.p5
The most commonly occurring drug interactions are listed below: - Drugs that may increase plasma phenytoin concentrations include: acute alcohol intake, amiodarone, chboramphenicol, chlordiazepoxide, cimetidine, diazepam, dicumarol, disulfiram, estrogens, ethosuximide, fluoxetine, H2-antagonists, halothane, isoniazid, methylphenidate, phenothiazines, phenylbutazone, salicylates, succinimides, sulfonamides, tolbutamide, trazodone
phenytoin
alcohol
MECHANISM
Fosphenytoin_ddi.xml
DDI-DrugBank.d40.s10
DDI-DrugBank.d40.s10.p0
Stavudine and Zidovudine Ribavirin can antagonize the in vitro antiviral activity of stavudine and zidovudine against HIV.
Ribavirin
stavudine
EFFECT
Peginterferon alfa-2a_ddi.xml
DDI-DrugBank.d196.s6
DDI-DrugBank.d196.s6.p7
Agents that have been found, or are expected to have decreased plasma levels in the presence of EQUETROTM due to induction of CYP enzymes are the following: Acetaminophen, alprazolam, amitriptyline, bupropion, buspirone, citalopram, clobazam, clonazepam, clozapine, cyclosporin, delavirdine, desipramine, diazepam, dicumarol, doxycycline, ethosuximide, felbamate, felodipine, glucocorticoids, haloperidol, itraconazole, lamotrigine, levothyroxine, lorazepam, methadone, midazolam, mirtazapine, nortriptyline, olanzapine, oral contraceptives(3), oxcarbazepine, Phenytoin(4), praziquantel, protease inhibitors, quetiapine, risperidone, theophylline, topiramate, tiagabine, tramadol, triazolam, valproate, warfarin(5) , ziprasidone, and zonisamide.
EQUETROTM
olanzapine
MECHANISM
Carbamazepine_ddi.xml
DDI-DrugBank.d94.s11
DDI-DrugBank.d94.s11.p28
Antacids, kaolin-pectin, sulfasalazine, neomycin, cholestyramine, certain anticancer drugs, and metoclopramide may interfere with intestinal digoxin absorption, resulting in unexpectedly low serum concentrations.
metoclopramide
digoxin
MECHANISM
Digoxin_ddi.xml
DDI-DrugBank.d450.s6
DDI-DrugBank.d450.s6.p20
Agents that have been found, or are expected to have decreased plasma levels in the presence of EQUETROTM due to induction of CYP enzymes are the following: Acetaminophen, alprazolam, amitriptyline, bupropion, buspirone, citalopram, clobazam, clonazepam, clozapine, cyclosporin, delavirdine, desipramine, diazepam, dicumarol, doxycycline, ethosuximide, felbamate, felodipine, glucocorticoids, haloperidol, itraconazole, lamotrigine, levothyroxine, lorazepam, methadone, midazolam, mirtazapine, nortriptyline, olanzapine, oral contraceptives(3), oxcarbazepine, Phenytoin(4), praziquantel, protease inhibitors, quetiapine, risperidone, theophylline, topiramate, tiagabine, tramadol, triazolam, valproate, warfarin(5) , ziprasidone, and zonisamide.
clozapine
itraconazole
NONE
Carbamazepine_ddi.xml
DDI-DrugBank.d94.s11
DDI-DrugBank.d94.s11.p380
Folic acid in large amounts may counteract the antiepileptic effect of phenobarbital, phenytoin and primidone, and increase the frequency of seizures in susceptible pediatric patients.
Folic acid
phenytoin
EFFECT
Leucovorin_ddi.xml
DDI-DrugBank.d151.s0
DDI-DrugBank.d151.s0.p1
Therefore, co-administration of bupropion with drugs that are metabolized by CYP2D6 isoenzyme including certain antidepressants (e.g., nortriptyline, imipramine, desipramine, paroxetine, fluoxetine, sertraline), antipsychotics (e.g., haloperidol, risperidone, thioridazine), beta-blockers (e.g., metoprolol), and Type 1C antiarrhythmics (e.g., propafenone, flecainide), should be approached with caution and should be initiated at the lower end of the dose range of the concomitant medication.
bupropion
propafenone
ADVISE
Bupropion_ddi.xml
DDI-DrugBank.d5.s17
DDI-DrugBank.d5.s17.p14
If desipramine hydrochloride is to be combined with other psychotropic agents such as tranquilizers or sedative/hypnotics, careful consideration should be given to the pharmacology of the agents employed since the sedative effects of desipramine and benzodiazepines (e.g., chlordiazepoxide or diazepam) are additive.
desipramine hydrochloride
desipramine
NONE
Desipramine_ddi.xml
DDI-DrugBank.d386.s23
DDI-DrugBank.d386.s23.p4
Garlic Capsules Garlic capsules should not be used while taking saquinavir (FORTOVASE) as the sole protease inhibitor due to the risk of decreased saquinavir plasma concentrations.
saquinavir
FORTOVASE
NONE
Saquinavir_ddi.xml
DDI-DrugBank.d124.s18
DDI-DrugBank.d124.s18.p0
Dextromethorphan is a substrate for both CYP2D6 and CYP3A4.
Dextromethorphan
CYP2D6
NONE
Amiodarone_ddi.xml
DDI-DrugBank.d143.s54
DDI-DrugBank.d143.s54.p0
Drug Interactions: The central anticholinergic syndrome can occur when anticholinergic agents such as AKINETON are administered concomitantly with drugs that have secondary anticholinergic actions, e.g., certain narcotic analgesics such as meperidine, the phenothiazines and other antipsychotics, tricyclic antidepressants, certain antiarrhythmics such as the quinidine salts, and antihistamines.
AKINETON
antihistamines
EFFECT
Biperiden_ddi.xml
DDI-DrugBank.d401.s0
DDI-DrugBank.d401.s0.p16
- Phenothiazines (acetophenazine [e.g., Tindal], chlorpromazine [e.g., Thorazine], fluphenazine [e.g., Prolixin], mesoridazine [e.g., Serentil], perphenazine [e.g., Trilafon], prochlorperazine [e.g., Compazine], promazine [e.g., Sparine], promethazine [e.g., Phenergan], thioridazine [e.g., Mellaril], trifluoperazine [e.g., Stelazine], triflupromazine [e.g., Vesprin], trimeprazine [e.g., Temaril]) or
Thorazine
thioridazine
NONE
Sulfapyridine_ddi.xml
DDI-DrugBank.d179.s21
DDI-DrugBank.d179.s21.p102
The immediate release, but not the coat-core formulation of nisoldipine increased plasma quinidine concentrations by about 20%.
nisoldipine
quinidine
MECHANISM
Nisoldipine_ddi.xml
DDI-DrugBank.d106.s9
DDI-DrugBank.d106.s9.p0
Administration of WELLBUTRIN Tablets to patients receiving either levodopa or amantadine concurrently should be undertaken with caution, using small initial doses and small gradual dose increases.
WELLBUTRIN
levodopa
ADVISE
Bupropion_ddi.xml
DDI-DrugBank.d5.s21
DDI-DrugBank.d5.s21.p0
Midazolam used at doses of 1.25 mg/kg and 2.5 mg/kg decreased the antinociceptive effect of morphine, metamizol (only in the tail-flick test) and indomethacin.
Midazolam
indomethacin
EFFECT
11210678.xml
DDI-MedLine.d67.s7
DDI-MedLine.d67.s7.p2
Drugs that reportedly may increase oral anticoagulant response, ie, increased prothrombin response, in man include:alcohol*;allopurinol;aminosalicylic acid;amiodarone;anabolic steroids;antibiotics;bromelains;chloral hydrate*;chlorpropamide;chymotrypsin;cimetidine;cinchophen;clofibrate;dextran;dextrothyroxine;diazoxide;dietary deficiencies;diflunisal;disulfiram;drugs affecting blood elements;ethacrynic acid;fenoprofen;glucagon;hepatotoxic drugs;ibuprofen;indomethacin;influenza virus vaccine;inhalation anesthetics;mefenamic acid;methyldopa;methylphenidate;metronidazole;miconazole;monoamine oxidase inhibitors;nalidixic acid;naproxen;oxolinic acid;oxyphenbutazone;pentoxifylline;phenylbutazone;phenyramidol;phenytoin;prolonged hot weather;prolonged narcotics;pyrazolones;quinidine;quinine;ranitidine*;salicylates;sulfinpyrazone;sulfonamides, long acting;sulindac;thyroid drugs;tolbutamide;triclofos sodium;trimethoprim/sulfamethoxazole;unreliable prothrombin time determinations;warfarin sodium overdosage.
anticoagulant
antibiotics
EFFECT
Anisindione_ddi.xml
DDI-DrugBank.d64.s87
DDI-DrugBank.d64.s87.p5
Uricosuric Agents: Aspirin may decrease the effects of probenecid, sulfinpyrazone, and phenylbutazone.
Aspirin
phenylbutazone
EFFECT
Aspirin_ddi.xml
DDI-DrugBank.d443.s0
DDI-DrugBank.d443.s0.p6
In monkeys, the effects of (-)-NANM, but not (+)-NANM or PCP, were antagonized by naloxone;
(-)-NANM
naloxone
EFFECT
3968644.xml
DDI-MedLine.d30.s8
DDI-MedLine.d30.s8.p2
It is suggested to monitor both ketoconazole and phenytoin.
ketoconazole
phenytoin
ADVISE
Ketoconazole_ddi.xml
DDI-DrugBank.d458.s23
DDI-DrugBank.d458.s23.p0
Agents that are CYP3A4 inhibitors that have been found, or are expected, to increase plasma levels of EQUETROTM are the following: Acetazolamide, azole antifungals, cimetidine, clarithromycin(1), dalfopristin, danazol, delavirdine, diltiazem, erythromycin(1), fluoxetine, fluvoxamine, grapefruit juice, isoniazid, itraconazole, ketoconazole, loratadine, nefazodone, niacinamide, nicotinamide, protease inhibitors, propoxyphene, quinine, quinupristin, troleandomycin, valproate(1), verapamil, zileuton.
EQUETROTM
itraconazole
MECHANISM
Carbamazepine_ddi.xml
DDI-DrugBank.d94.s4
DDI-DrugBank.d94.s4.p12
Injection: Lorazepam injection, like other injectable benzodiazepines, produces depression of the central nervous system when administered with ethyl alcohol, phenothiazines, barbiturates, MAO inhibitors, and other antidepressants.When scopolamine is used concomitantly with injectable lorazepam, an increased incidence of sedation, hallucinations, and irrational behavior has been observed.
scopolamine
lorazepam
EFFECT
Lorazepam_ddi.xml
DDI-DrugBank.d18.s1
DDI-DrugBank.d18.s1.p35
Pharmacological/Pharmacodynamic Interactions with Carbamazepine Concomitant administration of carbamazepine and lithium may increase the risk of neurotoxic side effects.
carbamazepine
lithium
EFFECT
Carbamazepine_ddi.xml
DDI-DrugBank.d94.s14
DDI-DrugBank.d94.s14.p2
Dexbrompheniramine can interact with alcohol or other CNS depressants (may potentiate the CNS depressant effects of either these medications or antihistamines), anticholinergics or other medications with anticholinergic activity (anticholinergic effects may be potentiated when these medications are used concurrently with antihistamines), and monoamine oxidase (MAO) inhibitors (concurrent use with antihistamines may prolong and intensify the anticholinergic and CNS depressant effects of antihistamines).
antihistamines
antihistamines
NONE
Dexbrompheniramine_ddi.xml
DDI-DrugBank.d62.s0
DDI-DrugBank.d62.s0.p35
INH (Isoniazid) is also reported to affect ketoconazole concentrations adversely.
Isoniazid
ketoconazole
MECHANISM
Ketoconazole_ddi.xml
DDI-DrugBank.d458.s25
DDI-DrugBank.d458.s25.p2
Etonogestrel may interact with the following medications: acetaminophen (Tylenol), antibiotics such as ampicillin and tetracycline, anticonvulsants (Dilantin, Phenobarbital, Tegretol, Trileptal, Topamax, Felbatol), antifungals (Gris-PEG, Nizoral, Sporanox), atorvastatin (Lipitor), clofibrate (Atromid-S), cyclosporine (Neoral, Sandimmune), HIV drugs classified as protease inhibitors (Agenerase, Crixivan, Fortovase, Invirase, Kaletra, Norvir, Viracept), morphine (Astramorph, Kadian, MS Contin), phenylbutazone, prednisolone (Prelone), rifadin (rifampin), St. Johns wort, temazepam, theophylline (Theo-Dur), and vitamin C.
Etonogestrel
protease inhibitors
INT
Etonogestrel_ddi.xml
DDI-DrugBank.d484.s0
DDI-DrugBank.d484.s0.p23
however, it adversely affected response duration suggesting that pyridoxine should not be administered with HEXALEN and/or cisplatin.1
pyridoxine
cisplatin
ADVISE
Altretamine_ddi.xml
DDI-DrugBank.d188.s2
DDI-DrugBank.d188.s2.p1
Consequently, concomitant administration of Aprepitant with strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, nefazodone, troleandomycin, clarithromycin, ritonavir, nelfinavir) should be approached with caution.
itraconazole
nefazodone
NONE
Aprepitant_ddi.xml
DDI-DrugBank.d382.s31
DDI-DrugBank.d382.s31.p13
The safety and efficacy of PROLEUKIN in combination with any antineoplastic agents have not been established.
PROLEUKIN
antineoplastic agents
NONE
Aldesleukin_ddi.xml
DDI-DrugBank.d114.s3
DDI-DrugBank.d114.s3.p0
Agents that have been found, or are expected to have decreased plasma levels in the presence of EQUETROTM due to induction of CYP enzymes are the following: Acetaminophen, alprazolam, amitriptyline, bupropion, buspirone, citalopram, clobazam, clonazepam, clozapine, cyclosporin, delavirdine, desipramine, diazepam, dicumarol, doxycycline, ethosuximide, felbamate, felodipine, glucocorticoids, haloperidol, itraconazole, lamotrigine, levothyroxine, lorazepam, methadone, midazolam, mirtazapine, nortriptyline, olanzapine, oral contraceptives(3), oxcarbazepine, Phenytoin(4), praziquantel, protease inhibitors, quetiapine, risperidone, theophylline, topiramate, tiagabine, tramadol, triazolam, valproate, warfarin(5) , ziprasidone, and zonisamide.
EQUETROTM
nortriptyline
MECHANISM
Carbamazepine_ddi.xml
DDI-DrugBank.d94.s11
DDI-DrugBank.d94.s11.p27
Certain drugs including thiazides, corticosteroids, thyroid products, and sympathomimetics may reduce the hypoglycemic action of Starlix and other oral antidiabetic drugs.
sympathomimetics
Starlix
EFFECT
Nateglinide_ddi.xml
DDI-DrugBank.d460.s15
DDI-DrugBank.d460.s15.p12
In two clinical studies, cyclosporine (one 4 mg/kg dose or two 3 mg/kg doses) increased the AUC of caspofungin by approximately 35%.
cyclosporine
caspofungin
MECHANISM
Caspofungin_ddi.xml
DDI-DrugBank.d350.s7
DDI-DrugBank.d350.s7.p0
Antibiotics (ampicillin, tetracycline): Pregnancy has been reported following concomitant use, however, pharmacokinetic studies have not shown consistent effects with these antibiotics on plasma concentrations of synthetic steroids.
Antibiotics
synthetic steroids
NONE
Ethynodiol Diacetate_ddi.xml
DDI-DrugBank.d485.s8
DDI-DrugBank.d485.s8.p3
Multivalent Cation-Containing Products: Concurrent administration of a quinolone, including ciprofloxacin, with multivalent cation-containing products such as magnesium or aluminum antacids, sucralfate, VIDEX chewable/buffered tablets or pediatric powder, or products containing calcium, iron, or zinc may substantially decrease the absorption of ciprofloxacin, resulting in serum and urine levels considerably lower than desired.
iron
ciprofloxacin
NONE
Ciprofloxacin_ddi.xml
DDI-DrugBank.d123.s8
DDI-DrugBank.d123.s8.p53
- Concomitant use of tricyclic antidepressants may reduce the efficacy of lofexidine.
tricyclic antidepressants
lofexidine
EFFECT
Lofexidine_ddi.xml
DDI-DrugBank.d454.s4
DDI-DrugBank.d454.s4.p0
Other drugs Drug interactions have been reported with concomitant administration of erythromycin and other medications, including cyclosporine, hexobarbital, carbamazepine, alfentanil, disopyramide, phenytoin, bromocriptine, valproate, astemizole, and lovastatin.
erythromycin
lovastatin
INT
Dirithromycin_ddi.xml
DDI-DrugBank.d522.s24
DDI-DrugBank.d522.s24.p9
Thyroid Physiology: The following agents may alter thyroid hormone or TSH levels, generally by effects on thyroid hormone synthesis, secretion, distribution, metabolism, hormone action, or elimination, or altered TSH secretion: aminoglutethimide, p-aminosalicylic acid, amiodarone, androgens and related anabolic hormones, complex anions (thiocyanate, perchlorate, pertechnetate), antithyroid drugs, b-adrenergic blocking agents, carbamazepine, chloral hydrate, diazepam, dopamine and dopamine agonists, ethionamide, glucocorticoids, heparin, hepatic enzyme inducers, insulin, iodinated cholestographic agents, iodine-containing compounds, levodopa, lovastatin, lithium, 6-mercaptopurine, metoclopramide, mitotane, nitroprusside, phenobarbital, phenytoin, resorcinol, rifampin, somatostatin analogs, sulfonamides, sulfonylureas, thiazide diuretics.
p-aminosalicylic acid
b-adrenergic blocking agents
NONE
Levothyroxine_ddi.xml
DDI-DrugBank.d411.s4
DDI-DrugBank.d411.s4.p39
Thyroid Physiology: The following agents may alter thyroid hormone or TSH levels, generally by effects on thyroid hormone synthesis, secretion, distribution, metabolism, hormone action, or elimination, or altered TSH secretion: aminoglutethimide, p-aminosalicylic acid, amiodarone, androgens and related anabolic hormones, complex anions (thiocyanate, perchlorate, pertechnetate), antithyroid drugs, b-adrenergic blocking agents, carbamazepine, chloral hydrate, diazepam, dopamine and dopamine agonists, ethionamide, glucocorticoids, heparin, hepatic enzyme inducers, insulin, iodinated cholestographic agents, iodine-containing compounds, levodopa, lovastatin, lithium, 6-mercaptopurine, metoclopramide, mitotane, nitroprusside, phenobarbital, phenytoin, resorcinol, rifampin, somatostatin analogs, sulfonamides, sulfonylureas, thiazide diuretics.
amiodarone
phenytoin
NONE
Levothyroxine_ddi.xml
DDI-DrugBank.d411.s4
DDI-DrugBank.d411.s4.p89
Uricosuric drugs, such as probenecid and sulfinpyrazone, can inhibit renal tubular secretion of nitrofurantoin.
Uricosuric drugs
sulfinpyrazone
NONE
Nitrofurantoin_ddi.xml
DDI-DrugBank.d276.s2
DDI-DrugBank.d276.s2.p1
Butalbital, acetaminophen and caffeine may enhance the effects of: other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression.
Butalbital
tranquilizers
EFFECT
Butalbital_ddi.xml
DDI-DrugBank.d559.s1
DDI-DrugBank.d559.s1.p5
Drugs that reportedly may increase oral anticoagulant response, ie, increased prothrombin response, in man include:alcohol*;allopurinol;aminosalicylic acid;amiodarone;anabolic steroids;antibiotics;bromelains;chloral hydrate*;chlorpropamide;chymotrypsin;cimetidine;cinchophen;clofibrate;dextran;dextrothyroxine;diazoxide;dietary deficiencies;diflunisal;disulfiram;drugs affecting blood elements;ethacrynic acid;fenoprofen;glucagon;hepatotoxic drugs;ibuprofen;indomethacin;influenza virus vaccine;inhalation anesthetics;mefenamic acid;methyldopa;methylphenidate;metronidazole;miconazole;monoamine oxidase inhibitors;nalidixic acid;naproxen;oxolinic acid;oxyphenbutazone;pentoxifylline;phenylbutazone;phenyramidol;phenytoin;prolonged hot weather;prolonged narcotics;pyrazolones;quinidine;quinine;ranitidine*;salicylates;sulfinpyrazone;sulfonamides, long acting;sulindac;thyroid drugs;tolbutamide;triclofos sodium;trimethoprim/sulfamethoxazole;unreliable prothrombin time determinations;warfarin sodium overdosage.
diflunisal
indomethacin
NONE
Anisindione_ddi.xml
DDI-DrugBank.d64.s87
DDI-DrugBank.d64.s87.p787
Drugs that reportedly may increase oral anticoagulant response, ie, increased prothrombin response, in man include:alcohol*;allopurinol;aminosalicylic acid;amiodarone;anabolic steroids;antibiotics;bromelains;chloral hydrate*;chlorpropamide;chymotrypsin;cimetidine;cinchophen;clofibrate;dextran;dextrothyroxine;diazoxide;dietary deficiencies;diflunisal;disulfiram;drugs affecting blood elements;ethacrynic acid;fenoprofen;glucagon;hepatotoxic drugs;ibuprofen;indomethacin;influenza virus vaccine;inhalation anesthetics;mefenamic acid;methyldopa;methylphenidate;metronidazole;miconazole;monoamine oxidase inhibitors;nalidixic acid;naproxen;oxolinic acid;oxyphenbutazone;pentoxifylline;phenylbutazone;phenyramidol;phenytoin;prolonged hot weather;prolonged narcotics;pyrazolones;quinidine;quinine;ranitidine*;salicylates;sulfinpyrazone;sulfonamides, long acting;sulindac;thyroid drugs;tolbutamide;triclofos sodium;trimethoprim/sulfamethoxazole;unreliable prothrombin time determinations;warfarin sodium overdosage.
anticoagulant
ethacrynic acid
EFFECT
Anisindione_ddi.xml
DDI-DrugBank.d64.s87
DDI-DrugBank.d64.s87.p18
Oral Anticoagulants: In some normal volunteers, the concomitant administration of diflunisal and warfarin, acenocoumarol, or phenprocoumon resulted in prolongation of prothrombin time.
diflunisal
warfarin
EFFECT
Diflunisal_ddi.xml
DDI-DrugBank.d132.s0
DDI-DrugBank.d132.s0.p4
Therefore, co-administration of tricyclic antidepressants with other drugs that are metabolized by this isoenzyme, including other antidepressants, phenothiazines, carbamazepine, and Type 1C antiarrhythmics (eg, propafenone, flecainide, and encainide), or that inhibit this enzyme (eg, quinidine), should be approached with caution.
tricyclic antidepressants
propafenone
ADVISE
Nortriptyline_ddi.xml
DDI-DrugBank.d202.s16
DDI-DrugBank.d202.s16.p4
We compared indinavir pharmacokinetics and gastric pH in 12 human immunodeficiency virus-positive patients by use of 800 mg of indinavir alone versus 800 mg of indinavir administered 1 h after didanosine administration.
indinavir
indinavir
NONE
11120981.xml
DDI-MedLine.d79.s2
DDI-MedLine.d79.s2.p1
If concomitant treatment with sumatriptan and an SSRI (e.g., fluoxetine, fluvoxamine, paroxetine, sertraline, citalopram, escitalopram) is clinically warranted, appropriate observation of the patient is advised.
sumatriptan
sertraline
ADVISE
Escitalopram_ddi.xml
DDI-DrugBank.d568.s17
DDI-DrugBank.d568.s17.p4
ALLEGRA should not be taken closely in time with aluminum and magnesium containing antacids.
ALLEGRA
magnesium
ADVISE
Fexofenadine_ddi.xml
DDI-DrugBank.d466.s20
DDI-DrugBank.d466.s20.p1
Administration of quinolones with antacids containing aluminum, magnesium, or calcium, with sucralfate, with metal cations such as iron, or with multivitamins containing iron or zinc, or with formulations containing divalent and trivalent cations such as VIDEX (didanosine) chewable/buffered tablets or the pediatric powder for oral solution, may substantially interfere with the absorption of quinolones, resulting in systemic concentrations considerably lower than desired.
quinolones
aluminum
MECHANISM
Grepafloxacin_ddi.xml
DDI-DrugBank.d78.s1
DDI-DrugBank.d78.s1.p1
Given the primary CNS effects of Clozapine, caution is advised in using it concomitantly with other CNS-active drugs or alcohol.
Clozapine
alcohol
EFFECT
Clozapine_ddi.xml
DDI-DrugBank.d480.s4
DDI-DrugBank.d480.s4.p0
Cholestyramine resin may interfere with the pharmacokinetics of drugs that undergo enterohepatic circulation, The discontinuance of cholestyramine resin could pose a hazard to health if a potentially toxic drug such as digitalis has been filtrated to a maintenance level while the patient was taking cholestyramine resin.
cholestyramine
digitalis
MECHANISM
Cholestyramine_ddi.xml
DDI-DrugBank.d566.s2
DDI-DrugBank.d566.s2.p12
Administration of quinolones with antacids containing aluminum, magnesium, or calcium, with sucralfate, with metal cations such as iron, or with multivitamins containing iron or zinc, or with formulations containing divalent and trivalent cations such as VIDEX (didanosine) chewable/buffered tablets or the pediatric powder for oral solution, may substantially interfere with the absorption of quinolones, resulting in systemic concentrations considerably lower than desired.
VIDEX
didanosine
NONE
Grepafloxacin_ddi.xml
DDI-DrugBank.d78.s1
DDI-DrugBank.d78.s1.p75
However, due to possible pharmacodynamic interactions, when co-administered with PRECEDEX, a reduction in dosage of PRECEDEX on the concomitant anesthetic, sedative, hypnotic or opioid may be required.
PRECEDEX
opioid
ADVISE
Dexmedetomidine_ddi.xml
DDI-DrugBank.d197.s4
DDI-DrugBank.d197.s4.p8
The concomitant use of vasopressors, vasoconstricting agents (such as ergonovine) and some oxytocic drugs may result in severe hypertension.
vasopressor
oxytocic drugs
EFFECT
Dopamine_ddi.xml
DDI-DrugBank.d325.s12
DDI-DrugBank.d325.s12.p1
Caution should be used if INDOCIN is administered simultaneously with methotrexate.
INDOCIN
methotrexate
ADVISE
Indomethacin_ddi.xml
DDI-DrugBank.d82.s12
DDI-DrugBank.d82.s12.p0
Cimetidine - In subjects who had received 21 days of 40 mg/day racemic citalopram, combined administration of 400 mg/day cimetidine for 8 days resulted in an increase in citalopram AUC and Cmax of 43% and 39%, respectively.
citalopram
cimetidine
MECHANISM
Escitalopram_ddi.xml
DDI-DrugBank.d568.s7
DDI-DrugBank.d568.s7.p3
Compounds that have been tested in man include antipyrine, digoxin, propranolol, theophylline, and warfarin and no clinically meaningful interactions were found.
theophylline
warfarin
NONE
Finasteride_ddi.xml
DDI-DrugBank.d209.s2
DDI-DrugBank.d209.s2.p9
Non-steroidal Anti-inflammatory Drugs: In some patients, the administration of a non-steroidal anti-inflammatory agent can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics.
non-steroidal anti-inflammatory agent
thiazide diuretics
EFFECT
Hydrochlorothiazide_ddi.xml
DDI-DrugBank.d162.s12
DDI-DrugBank.d162.s12.p6
Venlafaxine: Coadministration of a single dose of zaleplon 10 mg and multiple doses of venlafaxine ER (extended release) 150 mg did not result in any significant changes in the pharmacokinetics of either zaleplon or venlafaxine.
Venlafaxine
venlafaxine
NONE
Zaleplon_ddi.xml
DDI-DrugBank.d324.s10
DDI-DrugBank.d324.s10.p3
Increases in plasma levels of tricyclic antidepressants, and in the frequency and severity of side effects, particularly anticholinergic, have been reported when cimetidine was added to the drug regimen.
tricyclic antidepressants
cimetidine
MECHANISM
Amitriptyline_ddi.xml
DDI-DrugBank.d99.s23
DDI-DrugBank.d99.s23.p1
Diphenhydramine hydrochloride has additive effects with alcohol and other CNS depressants (hypnotics, sedatives, tranquilizers, etc).
Diphenhydramine hydrochloride
sedatives
EFFECT
Diphenhydramine_ddi.xml
DDI-DrugBank.d296.s0
DDI-DrugBank.d296.s0.p3
Antagonism has been demonstrated between clindamycin and erythromycin in vitro.
clindamycin
erythromycin
EFFECT
Clindamycin_ddi.xml
DDI-DrugBank.d256.s2
DDI-DrugBank.d256.s2.p0
Drugs that reportedly may increase oral anticoagulant response, ie, increased prothrombin response, in man include:alcohol*;allopurinol;aminosalicylic acid;amiodarone;anabolic steroids;antibiotics;bromelains;chloral hydrate*;chlorpropamide;chymotrypsin;cimetidine;cinchophen;clofibrate;dextran;dextrothyroxine;diazoxide;dietary deficiencies;diflunisal;disulfiram;drugs affecting blood elements;ethacrynic acid;fenoprofen;glucagon;hepatotoxic drugs;ibuprofen;indomethacin;influenza virus vaccine;inhalation anesthetics;mefenamic acid;methyldopa;methylphenidate;metronidazole;miconazole;monoamine oxidase inhibitors;nalidixic acid;naproxen;oxolinic acid;oxyphenbutazone;pentoxifylline;phenylbutazone;phenyramidol;phenytoin;prolonged hot weather;prolonged narcotics;pyrazolones;quinidine;quinine;ranitidine*;salicylates;sulfinpyrazone;sulfonamides, long acting;sulindac;thyroid drugs;tolbutamide;triclofos sodium;trimethoprim/sulfamethoxazole;unreliable prothrombin time determinations;warfarin sodium overdosage.
anesthetics
warfarin sodium
NONE
Anisindione_ddi.xml
DDI-DrugBank.d64.s87
DDI-DrugBank.d64.s87.p1078
Quinolones, including norfloxacin, may enhance the effects of oral anticoagulants, including warfarin or its derivatives or similar agents.
norfloxacin
warfarin
EFFECT
Norfloxacin_ddi.xml
DDI-DrugBank.d217.s5
DDI-DrugBank.d217.s5.p4
Although additional drug interaction studies have not been conducted, the most common medications used concomitantly with anagrelide in clinical trials were aspirin, acetaminophen, furosemide, iron, ranitidine, hydroxyurea, and allopurinol.
hydroxyurea
allopurinol
NONE
Anagrelide_ddi.xml
DDI-DrugBank.d75.s2
DDI-DrugBank.d75.s2.p27
Antacids and sucralfate: Sucralfate and antacids containing magnesium or aluminum, as well as formulations containing divalent and trivalent cations such as Videx (didanosine), chewable/buffered tablets or the pediatric powder for oral solution can form chelation complexes with lomefloxacin and interfere with its bioavailability.
aluminum
didanosine
NONE
Lomefloxacin_ddi.xml
DDI-DrugBank.d516.s3
DDI-DrugBank.d516.s3.p31
Nevertheless, clinical studies, as well as postmarketing observations have shown that Lodine can reduce the natriuretic effect of furosemide and thiazides in some patients.
furosemide
thiazides
NONE
Etodolac_ddi.xml
DDI-DrugBank.d219.s11
DDI-DrugBank.d219.s11.p2
Pharmacokinetic studies have demonstrated that omeprazole and erythromycin significantly increased the systemic exposure of cilostazol and/or its major metabolites.
erythromycin
cilostazol
MECHANISM
Cilostazol_ddi.xml
DDI-DrugBank.d358.s1
DDI-DrugBank.d358.s1.p2
Drugs that reportedly may increase oral anticoagulant response, ie, increased prothrombin response, in man include:alcohol*;allopurinol;aminosalicylic acid;amiodarone;anabolic steroids;antibiotics;bromelains;chloral hydrate*;chlorpropamide;chymotrypsin;cimetidine;cinchophen;clofibrate;dextran;dextrothyroxine;diazoxide;dietary deficiencies;diflunisal;disulfiram;drugs affecting blood elements;ethacrynic acid;fenoprofen;glucagon;hepatotoxic drugs;ibuprofen;indomethacin;influenza virus vaccine;inhalation anesthetics;mefenamic acid;methyldopa;methylphenidate;metronidazole;miconazole;monoamine oxidase inhibitors;nalidixic acid;naproxen;oxolinic acid;oxyphenbutazone;pentoxifylline;phenylbutazone;phenyramidol;phenytoin;prolonged hot weather;prolonged narcotics;pyrazolones;quinidine;quinine;ranitidine*;salicylates;sulfinpyrazone;sulfonamides, long acting;sulindac;thyroid drugs;tolbutamide;triclofos sodium;trimethoprim/sulfamethoxazole;unreliable prothrombin time determinations;warfarin sodium overdosage.
anticoagulant
methylphenidate
EFFECT
Anisindione_ddi.xml
DDI-DrugBank.d64.s87
DDI-DrugBank.d64.s87.p27
The potential effects of increased plasma concentrations of midazolam or other benzodiazepines metabolized via CYP3A4 (alprazolam, triazolam) should be considered when coadministering these agents with Aprepitant.
benzodiazepines
Aprepitant
ADVISE
Aprepitant_ddi.xml
DDI-DrugBank.d382.s23
DDI-DrugBank.d382.s23.p6
Theophylline: Ethinyl estradiol may inhibit the metabolism of theophylline, leading to increased plasma concentrations.
Ethinyl estradiol
theophylline
MECHANISM
Ethynodiol Diacetate_ddi.xml
DDI-DrugBank.d485.s40
DDI-DrugBank.d485.s40.p2
Nonsteroidal Anti-inflammatory Drugs (NSAIDs): The concomitant administration of a nonsteroidal anti inflammatory drug with a quinolone may increase the risks of CNS stimulation and convulsions.
Nonsteroidal Anti-inflammatory Drugs
quinolone
NONE
Grepafloxacin_ddi.xml
DDI-DrugBank.d78.s19
DDI-DrugBank.d78.s19.p2
Aspirin: Concomitant administration of aspirin with valdecoxib may result in an increased risk of GI ulceration and complications compared to valdecoxib alone.
aspirin
valdecoxib
EFFECT
Valdecoxib_ddi.xml
DDI-DrugBank.d328.s4
DDI-DrugBank.d328.s4.p3
Etonogestrel may interact with the following medications: acetaminophen (Tylenol), antibiotics such as ampicillin and tetracycline, anticonvulsants (Dilantin, Phenobarbital, Tegretol, Trileptal, Topamax, Felbatol), antifungals (Gris-PEG, Nizoral, Sporanox), atorvastatin (Lipitor), clofibrate (Atromid-S), cyclosporine (Neoral, Sandimmune), HIV drugs classified as protease inhibitors (Agenerase, Crixivan, Fortovase, Invirase, Kaletra, Norvir, Viracept), morphine (Astramorph, Kadian, MS Contin), phenylbutazone, prednisolone (Prelone), rifadin (rifampin), St. Johns wort, temazepam, theophylline (Theo-Dur), and vitamin C.
Etonogestrel
anticonvulsants
INT
Etonogestrel_ddi.xml
DDI-DrugBank.d484.s0
DDI-DrugBank.d484.s0.p5
Potential interactions between TAXOL, a substrate of CYP3A4, and protease inhibitors (ritonavir, saquinavir, indinavir, and nelfinavir), which are substrates and/or inhibitors of CYP3A4, have not been evaluated in clinical trials.
ritonavir
indinavir
NONE
Paclitaxel_ddi.xml
DDI-DrugBank.d288.s4
DDI-DrugBank.d288.s4.p10