Skip to main content

Drug Interactions between clonidine and Parnate

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

Edit list (add/remove drugs)

Interactions between your drugs

Moderate

cloNIDine tranylcypromine

Applies to: clonidine and Parnate (tranylcypromine)

MONITOR: Monoamine oxidase inhibitors (MAOIs) may potentiate the hypotensive effect of some medications. MAOIs alone quite commonly produce orthostatic hypotension. This effect may stem from a gradual MAOI-induced accumulation of false neurotransmitters in peripheral adrenergic neurons that have minimal activity at alpha- and beta-adrenergic receptors, resulting in a functional block of sympathetic neurotransmission. The interaction has been reported with the concomitant use of beta-blockers. In one report, a young woman developed marked orthostatic hypotension following the addition of pindolol 2.5 mg three times a day to an existing regimen of tranylcypromine. The pindolol dosage was reduced to 2.5 mg twice a day until her blood pressure stabilized, then slowly increased to 5 mg three times a day.

MANAGEMENT: Caution is advised during coadministration of MAOIs and other medications with hypotensive effects, especially during the first few weeks of treatment. Close monitoring for development of hypotension is recommended. Ambulatory patients should be advised to avoid rising abruptly from a sitting or recumbent position and to notify their physician if they experience dizziness, lightheadedness, syncope, orthostasis, or tachycardia.

References

  1. Reggev A, Vollhardt BR (1992) "Bradycardia induced by an interaction between phenelzine and beta blockers." Psychosomatics, 30, p. 106-8
  2. Pettinger WA, Soyangco FG, Oates JA (1968) "Inhibition of monoamine oxidase in man by furazolidone." Clin Pharmacol Ther, 9, p. 442-7
  3. Schulz R, Antonin KH, Hoffmann E, et al. (1989) "Tyramine kinetics and pressor sensitivity during monoamine oxidase inhibition by selegiline." Clin Pharmacol Ther, 46, p. 528-36
  4. Goldberg LI (1964) "Monoamine oxidase inhibitors: adverse reactions and possible mechanisms." JAMA, 190, p. 456-62
  5. Ban TA (1975) "Drug interactions with psychoactive drugs." Dis Nerv Syst, 36, p. 164-6
  6. (2001) "Product Information. Matulane (procarbazine)." Roche Laboratories
  7. De Vita VT, Hahn MA, Oliverio VT (1965) "Monoamine oxidase inhibition by a new carcinostatic agent, n-isopropyl-a-(2-methylhydrazino)-p-toluamide (MIH). (30590)." Proc Soc Exp Biol Med, 120, p. 561-5
  8. Kronig MH, Roose SP, Walsh BT, Woodring S, Glassman AH (1983) "Blood pressure effects of phenelzine." J Clin Psychopharmacol, 3, p. 307-10
  9. Golwyn DH, Sevlie CP (1993) "Monoamine oxidase inhibitor hypertensive crisis headache and orthostatic hypotension." J Clin Psychopharmacol, 13, p. 77-8
  10. (2001) "Product Information. Nardil (phenelzine)." Parke-Davis
  11. (2001) "Product Information. Parnate (tranylcypromine)." SmithKline Beecham
  12. (2001) "Product Information. Marplan (isocarboxazid)." Roche Laboratories
  13. (2002) "Product Information. Xatral (alfuzosin)." Sanofi-Synthelabo Canada Inc
View all 13 references

Switch to consumer interaction data

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

Switch to consumer interaction data

Moderate

cloNIDine food

Applies to: clonidine

MONITOR: Many psychotherapeutic and CNS-active agents (e.g., anxiolytics, sedatives, hypnotics, antidepressants, antipsychotics, opioids, alcohol, muscle relaxants) exhibit hypotensive effects, especially during initiation of therapy and dose escalation. Coadministration with antihypertensives and other hypotensive agents, in particular vasodilators and alpha-blockers, may result in additive effects on blood pressure and orthostasis.

MANAGEMENT: Caution and close monitoring for development of hypotension is advised during coadministration of these agents. Some authorities recommend avoiding alcohol in patients receiving vasodilating antihypertensive drugs. Patients should be advised to avoid rising abruptly from a sitting or recumbent position and to notify their physician if they experience dizziness, lightheadedness, syncope, orthostasis, or tachycardia.

References

  1. Sternbach H (1991) "Fluoxetine-associated potentiation of calcium-channel blockers." J Clin Psychopharmacol, 11, p. 390-1
  2. Shook TL, Kirshenbaum JM, Hundley RF, Shorey JM, Lamas GA (1984) "Ethanol intoxication complicating intravenous nitroglycerin therapy." Ann Intern Med, 101, p. 498-9
  3. Feder R (1991) "Bradycardia and syncope induced by fluoxetine." J Clin Psychiatry, 52, p. 139
  4. Ellison JM, Milofsky JE, Ely E (1990) "Fluoxetine-induced bradycardia and syncope in two patients." J Clin Psychiatry, 51, p. 385-6
  5. Rodriguez de la Torre B, Dreher J, Malevany I, et al. (2001) "Serum levels and cardiovascular effects of tricyclic antidepressants and selective serotonin reuptake inhibitors in depressed patients." Ther Drug Monit, 23, p. 435-40
  6. Cerner Multum, Inc. "Australian Product Information."
  7. Pacher P, Kecskemeti V (2004) "Cardiovascular side effects of new antidepressants and antipsychotics: new drugs, old concerns?" Curr Pharm Des, 10, p. 2463-75
  8. Andrews C, Pinner G (1998) "Postural hypotension induced by paroxetine." BMJ, 316, p. 595
View all 8 references

Switch to consumer interaction data

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.


Report options

Loading...
QR code containing a link to this page

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

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.