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Drug Interactions between clonazepam and Parnate

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

clonazePAM tranylcypromine

Applies to: clonazepam and Parnate (tranylcypromine)

MONITOR: Limited clinical data suggest that concomitant use of clonazepam with monoamine oxidase inhibitors (MAOIs) may precipitate a hypertensive and/or flushing reaction. The mechanism of interaction has not been established. Phenelzine has been specifically implicated. Data for other combinations of MAOIs and benzodiazepines are not available.

MANAGEMENT: Until more information is available, patients should be monitored for development of hypertension during coadministration of clonazepam with an MAOI or or other agents that possess MAOI activity such as furazolidone, linezolid, methylene blue, and procarbazine. Patients should be advised to notify their physician if they develop severe headaches or flushing.

References

  1. Karagianis JL, March H "Flushing reaction associated with the interaction of phenelzine and clonazepam." Can J Psychiatry 36 (1991): 389
  2. Eppel AB "Interaction between clonazepam and phenelzine." Can J Psychiatry 35 (1990): 647

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Drug and food interactions

Major

tranylcypromine food

Applies to: Parnate (tranylcypromine)

CONTRAINDICATED: Foods that contain large amounts of tyramine may precipitate a hypertensive crisis in patients treated with monoamine oxidase inhibitors (MAOIs). The mechanism is inhibition of MAO-A, the enzyme responsible for metabolizing exogenous amines such as tyramine in the gut and preventing them from being absorbed intact. Once absorbed, tyramine is metabolized to octopamine, a substance that is believed to displace norepinephrine from storage granules.

GENERALLY AVOID: Alcohol may potentiate some of the pharmacologic effects of MAOIs. Use in combination may result in additive central nervous system depression and/or impairment of judgment, thinking, and psychomotor skills.

MANAGEMENT: In general, patients treated with MAOIs or other agents that possess MAOI activity (e.g., furazolidone, linezolid, procarbazine) should avoid consumption of products that contain large amounts of amines and protein foods in which aging or breakdown of protein is used to increase flavor. These foods include cheese (particularly strong, aged or processed cheeses), sour cream, wine (particularly red wine), champagne, beer, pickled herring, anchovies, caviar, shrimp paste, liver (particularly chicken liver), dry sausage, salamis, figs, raisins, bananas, avocados, chocolate, soy sauce, bean curd, sauerkraut, yogurt, papaya products, meat tenderizers, fava bean pods, protein extracts, yeast extracts, and dietary supplements. Caffeine may also precipitate hypertensive crisis so its intake should be minimized as well. At least 14 days should elapse following discontinuation of MAOI therapy before these foods may be consumed. Specially designed reference materials and dietary consultation are recommended so that an appropriate and safe diet can be planned. Patients should be advised to promptly seek medical attention if they experience potential signs and symptoms of a hypertensive crisis such as severe headache, visual disturbances, difficulty thinking, stupor or coma, seizures, chest pain, unexplained nausea or vomiting, and stroke-like symptoms. Patients should also be counseled not to use MAOIs with alcohol, and to avoid hazardous activities requiring complete mental alertness and motor coordination until they know how these agents affect them.

References

  1. Pettinger WA, Soyangco FG, Oates JA "Inhibition of monoamine oxidase in man by furazolidone." Clin Pharmacol Ther 9 (1968): 442-7
  2. Goldberg LI "Monoamine oxidase inhibitors: adverse reactions and possible mechanisms." JAMA 190 (1964): 456-62
  3. Nuessle WF, Norman FC, Miller HE "Pickled herring and tranylcypromine reaction." JAMA 192 (1965): 142-3
  4. Sweet RA, Liebowitz MR, Holt CS, Heimberg RG "Potential interactions between monoamine oxidase inhibitors and prescribed dietary supplements." J Clin Psychopharmacol 11 (1991): 331-2
  5. Walker JI, Davidson J, Zung WWK "Patient compliance with MAO Inhibitor therapy." J Clin Psychiatry 45 (1984): 78-80
  6. Ban TA "Drug interactions with psychoactive drugs." Dis Nerv Syst 36 (1975): 164-6
  7. Darcy PF, Griffin JP "Interactions with drugs used in the treatment of depressive illness." Adverse Drug React Toxicol Rev 14 (1995): 211-31
  8. Maxwell MB "Reexamining the dietary restrictions with procarbazine (an MAOI)." Cancer Nurs 3 (1980): 451-7
  9. "Product Information. Matulane (procarbazine)." Roche Laboratories PROD (2001):
  10. De Vita VT, Hahn MA, Oliverio VT "Monoamine oxidase inhibition by a new carcinostatic agent, n-isopropyl-a-(2-methylhydrazino)-p-toluamide (MIH). (30590)." Proc Soc Exp Biol Med 120 (1965): 561-5
  11. Zetin M, Plon L, DeAntonio M "MAOI reaction with powdered protein dietary supplement." J Clin Psychiatry 48 (1987): 499
  12. Domino EF, Selden EM "Red wine and reactions." J Clin Psychopharmacol 4 (1984): 173-4
  13. Tailor SA, Shulman KI, Walker SE, Moss J, Gardner D "Hypertensive episode associated with phenelzine and tap beer--a reanalysis of the role of pressor amines in beer." J Clin Psychopharmacol 14 (1994): 5-14
  14. Pohl R, Balon R, Berchou R "Reaction to chicken nuggets in a patient taking an MAOI." Am J Psychiatry 145 (1988): 651
  15. "Product Information. Furoxone (furazolidone)." Roberts Pharmaceutical Corporation PROD (2001):
  16. "Product Information. Nardil (phenelzine)." Parke-Davis PROD (2001):
  17. "Product Information. Marplan (isocarboxazid)." Roche Laboratories PROD (2001):
  18. "Product Information. Zyvox (linezolid)." Pharmacia and Upjohn PROD (2001):
  19. Martin TG "Serotonin syndrome." Ann Emerg Med 28 (1996): 520-6
View all 19 references

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Moderate

clonazePAM food

Applies to: clonazepam

GENERALLY AVOID: Acute ethanol ingestion may potentiate the CNS effects of many benzodiazepines. Tolerance may develop with chronic ethanol use. The mechanism may be decreased clearance of the benzodiazepines because of CYP450 hepatic enzyme inhibition. Also, it has been suggested that the cognitive deficits induced by benzodiazepines may be increased in patients who chronically consume large amounts of alcohol.

MANAGEMENT: Patients should be advised to avoid alcohol during benzodiazepine therapy.

References

  1. MacLeod SM, Giles HG, Patzalek G, Thiessen JJ, Sellers EM "Diazepam actions and plasma concentrations following ethanol ingestion." Eur J Clin Pharmacol 11 (1977): 345-9
  2. Whiting B, Lawrence JR, Skellern GG, Meier J "Effect of acute alcohol intoxication on the metabolism and plasma kinetics of chlordiazepoxide." Br J Clin Pharmacol 7 (1979): 95-100
  3. Divoll M, Greenblatt DJ, Lacasse Y, Shader RI "Benzodiazepine overdosage: plasma concentrations and clinical outcome." Psychopharmacology (Berl) 73 (1981): 381-3
  4. Juhl RP, Van Thiel DH, Dittert LW, Smith RB "Alprazolam pharmacokinetics in alcoholic liver disease." J Clin Pharmacol 24 (1984): 113-9
  5. Ochs HR, Greenblatt DJ, Arendt RM, Hubbel W, Shader RI "Pharmacokinetic noninteraction of triazolam and ethanol." J Clin Psychopharmacol 4 (1984): 106-7
  6. Staak M, Raff G, Nusser W "Pharmacopsychological investigations concerning the combined effects of dipotassium clorazepate and ethanol." Int J Clin Pharmacol Biopharm 17 (1979): 205-12
  7. Nichols JM, Martin F, Kirkby KC "A comparison of the effect of lorazepam on memory in heavy and low social drinkers." Psychopharmacology (Berl) 112 (1993): 475-82
View all 7 references

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Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

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