Phenobarbital Chlorpromazine

CHLORPROMAZINE PHENOBARBITAL i levels of both drugs Induction of metabolism Watch for poor response to these drugs, and consider increasing the dose... 

Chlorpromazine Phenobarbital Phenytoin Valproate Probably of little clinical relevance for phenytoin, a fall in concentration has also been reported Inhibition of metabolism of the object drugs... 

Drew, R.T. and Fonts, J.R. The lack of effects of pretreatment with phenobarbital and chlorpromazine on the acute toxicity of benzene in rats, Toxicol. Appl. Pharmacol, 27 1) 183-19Z, 1974. 

Drugs that may affect valproic acid include carbamazepine, charcoal, chlorpromazine, cholestyramine, cimetidine, erythromycin, ethosuximide, felbamate, lamotrigine, phenytoin, rifampin, and salicylates. Drugs that may be affected by valproic acid include carbamazepine, clonazepam, diazepam, ethosuximide, lamotrigine, phenobarbital, phenytoin, tolbutamide, tricyclic antidepressants, warfarin, and zidovudine. 

Phenobarbital and Barbiturates, chloramphenicol, chlorpromazine, cortisol, coumarin anticoagulants,... 

Phenobarbital and other barbiturates1 Barbiturates, chloramphenicol, chlorpromazine, cortisol, coumarin anticoagulants, desmethylimipramine, digitoxin, doxorubicin, estradiol, phenylbutazone, phenytoin, quinine, testosterone... 

Casey, J. E, Bennett, I. E, Lindley, C. J., Hollister, L. E., Gordon, M. H., Springer, N. N. 1960a, Drug therapy in schizophrenia. A controlled study of the relative effectiveness of chlorpromazine, promazine, phenobarbital, and placebo, Arch.Gen.Psychiatry, vol. 2, pp. 210-220. 

Ratio of lethal dose to effective dose for morphine (an opioid, Chapter 14), chlorpromazine (a neuroleptic, Chapter 13), and the anxiolytic, hypnotic drugs, phenobarbital and diazepam. 

Inducers of UGT include carbamazepine, phenobarbital, phenytoin and rifampin. Inhibitors of UGTs include amitriptyline, chlorpromazine, ciclosporin, clomipramine, diazepam, lorazepam, nitrazepam and valproic acid,... 

Drugs that are known to be substrates of P-gp include antihistamines (e.g. terfenadine), digoxin, ciclosporin, hydrocortisone and other steroids and drugs used in chemotherapy (e.g. paclitaxel, vinblastine). Ciclosporin, in addition to being a substrate of P-gp, is also an inhibitor of P-gp. Drugs known to induce P-gp include morphine, dexamethasone, phenobarbital, rifampin and St John s wort. Inhibitors of P-gp include amiodarone, amitriptyline, atorvastatin, chlorpromazine, ciclosporin, erythromycin, fluphenazine, haloperidol, quinidine, ritonavir and verapamil,... 

Drugs that bind strongly to red blood cells may exhibit concentration-dependent uptake from plasma. This is reported for acetazolamide, chlorthali-done, and cyclosporine. " The determination of the blood to plasma (B/P) ratios can be method specific. For example, the determination of the B/P ratio of cyclosporine A increases from 1.5-3.0 when estimated at body temperature (37°C) compared with a ratio of 2.5-10.0 at room temperature (20°C). Drugs reported to bind strongly to the erythrocytes (B/P ratio > 1) are promazine, chlorpromazine, propranolol, salicylate, phenobarbital, pentazocine, and phenytoin. " ... 

Clinically important, potentially hazardous interactions with alcohol, anticholinergics, barbiturates, benzodiazepines, butabarbital, chloral hydrate, chlordiazepoxide, chlorpromazine, clonazepam, clorazepate, diazepam, ethchlorvynol, fluphenazine, flurazepam, hypnotics, lorazepam, MAO inhibitors, mephobarbital, mesoridazine, midazolam, narcotics, oxazepam, pentobarbital, phenobarbital, phenothiazines, phenylbutazone, primidone, prochlorperazine, promethazine, quazepam, secobarbital, sedatives, temazepam, thioridazine, tranquilizers, trifluoperazine, zolpidem... 

Krnjevic and Videk ) described a new screening test based on a "natural reaction of a rat, namely the entrance into a darkened cage through a hole of suitable size (5 cm. ). Either of several depressants, chlorpromazine, reserpine, phenobarbital, etc. increased the time required for this reaction. A pyschostimulant, amphetamine, decreased the time, as did the anti-depressants imipramine or nialamide. 

Chlorpromazine, cimetidine, and salicylates decrease the clearance of valproic acid and increase its half-life. Addition of valproic acid to phenobarbital may result in an increased phenobarbital level and an increase in CNS effects. 

Simultaneous chlorpromazine, clonazepam, diazepam, flurazepam, hexobarbital, oxazepam, phenobarbital, temazepam... 

Also analyzed acebutolol, acepromazine, acetaminophen, acetazolamide, acetophenazine, albuterol, amitriptyline, amobarbital, amoxapine, antipsrrine, atenolol, atropine, azata-dine, baclofen, benzocaine, bromocriptine, brompheniramine, brotizolam, bupivacaine, buspirone, butabarbital, butalbital, caffeine, carbamazepine, cetirizine, chlorqyclizine, chlordiazepoxide, chlormezanone, chloroquine, chlorpheniramine, chlorpromazine, chlorpropamide, chlorprothixene, chlorthalidone, chlorzoxazone, cimetidine, cisapride, clomipramine, clonazepam, clonidine, clozapine, cocaine, codeine, colchicine, qyclizine, (yclo-benzaprine, dantrolene, desipramine, diazepam, diclofenac, diflunisal, diltiazem, diphenhydramine, diphenidol, dipheno late, dipyridamole, disopyramide, dobutamine, doxapram, doxepin, droperidol, encainide, ethidium bromide, ethopropazine, fenoprofen, fentanyl, flavoxate, fluoxetine, fluphenazine, flurazepam, flurbiprofen, fluvoxamine, fii-rosemide, glutethimide, glyburide, guaifenesin, haloperidol, homatropine, hydralazine, hydrochlorothiazide, hydrocodone, hydromorphone, hydro g chloroquine, hydroxyzine, ibuprofen, imipramine, indomethacin, ketoconazole, ketoprofen, ketorolac, labetalol, le-vorphanol, lidocaine, loratadine, lorazepam, lovastatin, loxapine, mazindol, mefenamic acid, meperidine, mephenytoin, mepivacaine, mesoridazine, metaproterenol, methadone, methdilazine, methocarbamol, methotrexate, methotrimeprazine, methoxamine, methyl-dopa, methylphenidate, metoclopramide, metolazone, metoprolol, metronidazole, midazolam, moclobemide, morphine, nadolol, nalbuphine, naloxone, naphazoline, naproxen, nifedipine, nizatidine, norepinephrine, nortriptyline, oxazepam, oxycodone, oxymetazo-line, paroxetine, pemoline, pentazocine, pentobarbital, pentoxifylline, perphenazine, pheniramine, phenobarbital, phenol, phenolphthalein, phentolamine, phenylbutazone, phenyltoloxamine, phenytoin, pimozide, pindolol, piroxicam, pramoxine, prazepam, prazosin, probenecid, procainamide, procaine, prochlorperazine, procyclidine, promazine, promethazine, propafenone, propantheline, propiomazine, propofol, propranolol, protriptyline, quazepam, quinidine, quinine, racemethorphan, ranitidine, remoxipride, risperidone, salicylic acid, scopolamine, secobarbital, sertraline, sotalol, spironolactone, sulfinpyrazone, sulindac, temazepam, terbutaline, terfenadine, tetracaine, theophylline, thiethyl-perazine, thiopental, thioridazine, thiothixene, timolol, tocainide, tolbutamide, tolmetin, trazodone, triamterene, triazolam, trifluoperazine, triflupromazine, trimeprazine, trimethoprim, trimipramine, verapamil, warfarin, xylometazoline, yohimbine, zopiclone... 

Simultaneous chlordieizepoxide, chlorpromazine, cimetidine, clomipramine, diazepam, doxepin, flurazepam, lorazepeun, oxeizepam, p>entobarbital, perphenazine, phenobarbital, phenytoin, prochlorperazine, secobarbital, thioridazine, trifluoperazine Noninterfering acetaminophen, codeine, meperidine Interfering propoxyphene... 

Wong, S.H.Y. McHugh, S.L. Dolan, J. Cohen, K.A. Tricyclic antidepressant analysis by reversed-phase liquid chromatography using phenyl columns. J.Liq.Chromatogr., 1986, 9, 2511-2538 [also acetaminophen, amobarbital, amoxapine, barbital, chlordiazepoxide, chlorpromazine, cimetidine, clomipramine, codeine, desipramine, desmethyldoxepin, diazepam, doxepin, fluphenazine, flurazepam, glutethimide, hydroxyamoxapine, imipramine, lorazepam, maprotiline, meperidine, metabolites, nortriptyline, oxazepam, pentobarbital, perphenazine, phenobarbital, phenytoin, propoxyphene, protriptyline, secobarbital, thioridazine, trazodone]... 

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