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Drug Interactions
Top 80 Drugs for Lab Midterm
80
Other
Graduate
10/01/2010

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Term

 

 

Duloxetine HCl

 

Drug Interactions

Definition

1.  MAO-Is

2.  Inhibitors of CYP1A2 - Fluvoxamine, Quniolone

3.  Inhibitors of CYP2D6 - Paroxetine, Fluoxetine, Quinidine

4.  Drugs metabolized by 2D6 will be increased - TCAs, Phenothiazines, Propafenone, & Flecainide

Term
Venlafaxine HCl

Drug Interactions
Definition
1. MAO-Is
2. Antihistamines
3. ASA or NSAID increase risk of upper GI bleeding
Term
Sertraline HCl

Drug Interactions
Definition
1. MAO-Is
2. Increase Pimozide levels
3. Displaced by or displace other - Warfarin, Digitoxin
4. Decrease clearance of Diazepam & Tolbutamide
5. Variable effects may occur w/ CYP3A3/4
6. ASA & NSAID increase risk of upper GI bleeding
Term
Trazodone HCl

Drug Interactions
Definition
1. OH and CNS depressants increase drowsiness
2. Increase effects of Phenytoin
3. Grapefruit juice may increase plasma levels
4. CYP3A4 inhibitors (ketoconazole, ritonavir, indinavir) may decrease metabolism of trazodone
Term
Citalopram HBr

Drug Interactions
Definition
1. MAO-Is
2. Cimetidine may increase plasma levels
3. ASA and NSAID increase risk of upper GI bleeding
Term
Amitriptyline HCl

Drug Interactions
Definition
1. Increase action of dicumarol
2. Decrease effectiveness of clonidine & guanethidine
3. MAO-Is
4. OH and CNS depressants increase drowsiness
5. Cimetidine increases plasma level
Term
Bupropion HCl

Drug Interactions
Definition
1. Toxicity is increased by MAO-I & L-Dopa
2. Caution in hepatic drug metabolizing systems
3. OH lowers the seizure threshold
Term
Escitalopram Oxalate

Drug Interactions
Definition
1. MAO-Is
2. Cimetidine may increase plasma levels
3. ASA and NSAID increase risk of upper GI bleeding
Term
Fluoxetine HCl

Drug Interactions
Definition
1. MAO-Is
2. Increase thioridazine
3. Increase plasma levels of TCAs, Benzodiazepines, Phenytoin,, Carbamazepine, and drugs metabolized by P450IID6
4. ADE occur w/ Tryptophan or Sumatriptan
5. ASA or NSAID may increase risk of upper GI bleeding
Term
Donepezil HCl

Drug Interactions
Definition
1. Phenytoin, carbamazepine, [henobarbital, rifampin, or dexamethasone increase the metabolism
2. Ketoconazole or quinidine decreases metabolism
Term
Quetiapine Fumerate

Drug Interactions
Definition
1. CNS depressants
2. Oral clearance is increased by phenytoin & thioridazine
Term
Aripiprazole

Drug Interactions
Definition
1. CYP3A4 inducers (carbamazepine) may decrease plasma levels
2. CYP3A4 inhibitors (quinidine, fluoxetine, and paroxetine) may increase plasma
Term
Risperidone

Drug Interactions
Definition
1. Decrease the effects of levodopa
2. Carbamazepine increase the clearance
3. Fluoxetine may double or triple the plasma [ ]s
4. Clozapine may decrease the clearance
Term
Pregabalin

Drug Interactions
Definition
1. CNS depressants
2. Peripheral edema may occur when given with thiazolidinedione antidiabetic agents
Term
Lamotrigine

Drug Interactions
Definition
1. Phenytoin, carbamazepine, phenobarbital, & rifampin increase the metabolism
2. Valproic acid increases plasma [] while lamotrigine decreases []of valproic acid
3. It is a potent inhibitor of dihydrofolate reductase
4. OC - decrease the progestin component while decrease the serum [] of lamotrigine
Term
Divalproex Na

Drug Interactions
Definition
1. ASA, carbamazepine, & dicumarol - alter serum levels thru ptn binding
2. Impair the renal clearance of phenobarbital
3. alter the levels on phenytoin
4. use w/ clonazepam may cause absence seizures
Term
Gababpentin

Drug Interactions
Definition
Antacids decrease bioavailability
Term
Clonazepam

Drug Interactions
Definition
OH & CNS depressants
Term
Topiramate

Drug Interactions
Definition
1. OH & CNS depressants
2. increase metabolism of estrogens
3. increase metformin blood levels
4. It is a weak carbnic anhydrase inhibitor
5. Phyenytoin & carbamazepine may decrease the drug
6. HCTZ may raise the blood level
7. Use w/ valproic acid may cause hyperammonemia
Term
Diazepam

Drug Interactions
Definition
1. CNS depressants
2. Cimetidine may delay clearance
3. Grapefruit juice may increase plasma
Term
Alprazolam

Drug Interactions
Definition
CNS depressants
Term
Lorazepam

Drug Interactions
Definition
1. CNS depressants
2. Probenecid or valproate decrease the excretion
Term
Zolpidem Tartrate

Drug Interactions
Definition
CNS depressants
Term
Tramadol HCl

Drug Interactions
Definition
1. MAOIs & TCAs
2. Risk of seizures - 5HT reuptake inhibitors, TCAs, & opiods
3. Quinidine increased []s of tramadol & reduced []s of M1
4. Carbamazepine increases metabolism
Term
Propoxyphene Napsylate with Acetaminophen

Drug Interactions
Definition
1. OH & CNS depressants
2. increase Carbamazepine
3. Hydantoin or sulfinpyrazone - hepatotoxicity
Term
Oxycodone with Acetaminophen

Drug Interactions
Definition
1. OH & CNS depressants
2. Hydantoin or sulfinpyrazone - hepatotoxicity
Term
Oxycodone HCl (controlled-release)

Drug Interactions
Definition
Enhance the actions of phenothiazines, general anesthetics, sedatives, hypnotics, OH, skeletal muscle relaxants, & agonist/antagonist analgesics
Term
Hydrocodone Bitartrate with Acetaminophen

Drug Interactions
Definition
1. OH & CNS depressants
2. MAOI or TCAs
3. Anticholinergics may produce paralytic ileus
4. Hydantoin or sulfinpyrazone -
Term
Ibuprofen

Drug Interactions
Definition
1. ASA increases plasma clearance
2. Probenecid decreases plasma clearance
3. Increase toxicity of Li
4. Decrease the effects of B-adrenergic blockers
5. decrease the actions of LOOPs
Term
Meloxicam

Drug Interactions
Definition
1. Increase Li
2. Decrease effects of ACEI
3. Cholestyramine increases the clearance
4. increase NSAID & ASA
5. Use in caution w/ Warfarin
Term
Naproxen

Drug Interactions
Definition
1. Increase the effects of oral anticoagulants, Li,& methotrexate
2. Do not use w/ other NSAIDs
Term
Cyclobenzaprine

Drug Interactions
Definition
1. OH & CNS depressants
2. Decrease the effects of guanethidine
Term
Carisoprodol

Drug Interactions
Definition
OH & CNS depressants
Term
Rosuvastatin Ca

Drug Interactions
Definition
1. Cyclosporine increases plasma
2. Warfarin increases INR
3. Gemfibrozil increases plasma
4. Antacids decreases plasma
Term
Atorvastatin Ca

Drug Interactions
Definition
1. increase digoxin
2. Gemfibrozil, grapfruit, nicotinic acid, itraconazole, erthyromycin, clarithromycin, azole antifungals, protease inhibitor combos, and cyclosporine increase plasma levels
Term
Lovastatin

Drug Interactions
Definition
1. Gemfibrozil may cause severe myopathy or rhabdo
2. Grapefruit juice increases plasma (avoid)
Term
Simvastatin

Drug Interactions
Definition
1. Increase warfarin or digoxin
2. Gemfribrozil, nicotinic acid, danazol, amiodarone, verapamil, immunosupppressive agents and potent CYP3A4 inhibitors (itra, keto, erythro, clarithro, telithro, HIV protease inhibitors, nefazodone, & grapefruit juice) may cause myopathy or rhabdo
Term
Glipizide

Drug Interactions
Definition
1. Dicumarol, chloramphenicol, OH, MAOI, phenylbutazones, salicylates, sulfinpyrazone, & sulfonamides may increase the effects
2. Diazoxide, rifampin, & thiazide diuretics may decrease effects
Term
Glyburide

Drug Interactions
Definition
1. Dicumarol, chloramphenicol, OH, MAOI, phenylbutazones, salicylates, sulfinpyrazone, & sulfonamides may increase the effects
2. Diazoxide, rifampin, & thiazide diuretics may decrease effects
Term
Pioglitazone HCl

Drug Interactions
Definition
1. Keto, itra, & gemfibrozil may inhibit metaboism

2. Rifampin decreases plasma
Term
Insulin Glargine, rDNA origin

Drug Interactions
Definition
1. Corticosteroids, diltiazem, dobutamine, E, OC, thiazide, thyroid, & tobacco smoke decrease hypoglycemic effect
2. OH, anabolic steroids, nonselective BB, clofibrate, fenfluamine, guanethidine, MAOIs, phenylbutazone, salicylates, sulfinypyrazone, & TET increase the hypoglycemic
Term
Metformin HCl

Drug Interactions
Definition
Furosemide, cimetidine, & nefedipine may increase plasma level
Term
Fenofibrate

Drug interactions
Definition
1. increase actions of warfarin
2. No HMG-CoA reductase inhibitors
3. Cholestryamine decrease the absorption
Term
Lisinopril w/ HCTZ

Drug Interactions
Definition
1. Indomethacin decreases effect
2. Allopurinol increases hypersensitivity
3. K supplements cause hyperkalemia
4. Digitalis induced arrhythmias
5. Diazoxide cause hyperglycemia
6. Increase Li
Term
Diltiazem HCl

Drug Interactions
Definition
1. enhance actions of cyclosporine
2. Cimetidine may increase plasma
3. increase levels of carbamazepine
Term
Clonidine HCl

Drug Interactions
Definition
1. Decreases BP w/ TCA
2. Increases BP w/ BB
Term
Atenolol

Drug Interactions
Definition
1. Decrease effects of Clonidine
2. NSAIDs may decrease the effects
3. Verapamil may increase toxic effects
4. Increase toxic effects of lidocaine
5. increase postural hypotension w/ prazosin
6. AMP decrease effects
Term
Metoprolol succinate

Drug Interactions
Definition
1. Decrease theophyllines
2. Barbiturates & rifampin decrease
3. Hydralazine, propafenone, or thioamines increase
4. NSAIDs decrease
5. Toxic effects w/ verapamil
6. increases toxic effects of lidocaine
7. Prazosin increase postural hypotension
Term
Metoprolol Tartrate

Drug Interactions
Definition
1. Decrease theophyllines
2. Barbiturates & rifampin decrease
3. Hydralazine, propafenone, or thioamines increase
4. NSAIDs decrease
5. Toxic effects w/ verapamil
6. increases toxic effects of lidocaine
7. Prazosin increase postural hypotension
8. Digitalis - additive bradycardia
Term
Carvediolol

Drug Interactions
Definition
1. rifampin decreases
2. Cimetidine increases AUC but not Cmax
3. Quinidine, fluoxetine, paroxetine, & propafenone increase
4. reserpine, clonidine, digoxin, or MAO produce hypotension or bradycardia
5. Diltiazem or verapamil cause conduction disturbances
6. increase digoxin
7. inhibitors CYP2C9 (amiodarone or fluconazole may exacerbate bradycardia
Term
Amlodipine Besylate

Drug Interactions
Definition
NO DRUG INTERACTIONS
Term
Lisinopril

Drug interactions
Definition
1. Indomethacin decreases effect
2. Capsaicin increase the coughing
3. Allopurinol - hypersenstivity
4. decreases Li elimination
5. K - hyperkalemia
6. Potentate - oral antidiabetics and/or insulin
Term
HCTZ

Drug interactions
Definition
1. decrease sulfonylurea hypoglycemia
2. digitalis induced arrhythmias
3. diazoxide - hyperglycemia
4. increase Li
Term
Spironolactone

Drug interactions
Definition
1. Hyperkalemia w/ captopril & K sparing
2. variable effects w/ digitalis glycosides
Term
Furosemide

Drug interactions
Definition
1. Auditory toxicity - cisplatin or AGs
2. Phenytoin & NSAIDs reduced effects
3. Hypokalemia - digitalis induced arrhythmias
4. Hypokalemic - K-depleting drugs
Term
Tiotropium Br

Drug interactions
Definition
Term
Levalbuterol HCl

Drug interactions
Definition
1. sympathomimetics, TCAS, & MAOIs increase the toxicity
2. Hypokalemia - non-K sparing diuretics
3. Decrease digoxin levels
Term
Ipratropium Br w/ Albuterol Sulfate

Drug interactions
Definition
1. sympathomimetics, TCAS, & MAOIs increase the toxicity
2. Hypokalemia - non-K sparing diuretics
Term
Fluticasone Propionate w/ Salmeterol Xinafoate

Drug interactions
Definition
1. Additives effect w/ systemic corticosteroids
2. sympathomimetics, TCAS, & MAOIs increase the toxicity
3. BBs decrease the salmeterol effect
Term
Albuterol Sulfate

Drug interactions
Definition
1. sympathomimetics, TCAS, & MAOIs increase the toxicity
2. Hypokalemia - non-K sparing diuretics
3. Decrease digoxin levels
Term
Montelukast Na

Drug interactions
Definition
1. Phenobarbital increase metabolism
2. Decrease metabolism of Paclitxel, rosiglitazone, & repaglinide
Term
Fluticasone Propionate

Drug interactions
Definition
Systemic corticosteroids - synergistic effects
Term
Fexofenadine HCl

Drug interactions
Definition
Term
Sulfamethoxazole w/ Trimethoprim

Drug interactions
Definition
1. Decrease the effects of cyclosporine
2. increase procainamide & hydantoins
3. increase oral anticoagulatns & sulfonylureas
Term
Amoxicillin Trihydrate

Drug interactions
Definition
1. OC
2. Bacteriostatic antibiotics
3. Renal excretion will be decreased w/ probenecid
Term
Azithromycin Dihydrate

Drug interactions
Definition
1. Antacids slow absorption
2. Food decreases absorption
3. Nelfinavir increases []
Term
Pantoprazole Na

Drug interactions
Definition
Raises the pH of the stomach, drugs which require a low pH for absorption (keto, amp esters, Fe salts)
Term
Ranitidine HCl

Drug interactions
Definition
1. Decrease warfarin & lidocaine clearance
2. increase absorption of triazolam
3. decrease metabolism of nifedipine & TCAs
Term
Omeprazole

Drug interactions
Definition
1. Increases plasma of diazepam, phenytoin, & warfarin
2. May interact w/ CYP450 (cyclosporine, disulfiram, benzo)
3. Gastric pH: keto, digoxin, cyanocobalamin, amp esters, & Fe salts
4. Voriconazole increases plasma
Term
Esomeprazole Mg

Drug interactions
Definition
1. increases plasma of diazepam
2. Gastric pH: keto, digoxin, cyanocobalamin, amp esters, & Fe salts
3. decrease the plasma level of atazanavir
4. Voriconazole increases plasma
Term
KCl

Drug interactions
Definition
K-sparing diuretics, aldosterone antagonists, ACEI, K-containing meds, or salt substitutes
Term
Metoclopramide HCl

Drug interactions
Definition
1. OH & CNS depressants
2. increase cyclosporine
3. decrease digoxin
4. increase succinylcholine
Term
ASA

Drug interactions
Definition
1. inhibits the effects of probenecid & sulfinpyrazone
2. anticoagulants - additive effects
2. anti-inflammatory drugs - decreases effectiveness & increase ulcerogenic effects of both
Term
Clopidogrel Bisulfate

Drug interactions
Definition
1. Predispose occult blood w/ NSAIDs
2. interfere w/ metabolism of phenytoin, tamoxifen, tobutamide, warfarin, torsemide, fluvastatin, & NSAIDs
Term
Warfarin Na

Drug interactions
Definition
LONG LIST
Term
Prednisone

Drug interactions
Definition
1. antagonize the effects of anticholinesterases
2. Barbiturates, rifampin, & hydantoins increase metabolism
3. Estrogens decrease metabolism
4. Keto may increase effects
5. Decrease salicylate effects
Term
Tamsulosin

Drug interactions
Definition
1. Additive effects w/ other aa-blocking agents
2. Cimetidine dcreases clearance & raises plasma levels
Term
Tolterodine Tartrate

Drug interactions
Definition
Inhibitors of CYP3A4 (keto, itra, micon, erythro, clarithro, cyclosporine, & vinblastine) may increase plasma
Term
Alendronate Na

Drug interactions
Definition
1. Ca & antacids may decrease absorption if taken w/in 30 min
2. ASA increase GI effects
Term
Levothyroxine Na

Drug interactions
Definition
1. increase effects of oral anticoagulant
2. cholestyramine may decrease the absorption
3. decrease effects of digitalis glycosides
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