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Drug Interactions between furazolidone and Re-Drylex Jr

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

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Major

furazolidone phenylephrine

Applies to: furazolidone and Re-Drylex Jr (chlorpheniramine / methscopolamine / phenylephrine)

CONTRAINDICATED: Indirect- or mixed-acting sympathomimetic amines may precipitate severe hypertensive reactions and hyperpyrexia in patients treated with monoamine oxidase inhibitors (MAOIs). Death has occurred in some reported cases. The mechanism involves a synergistic sympathomimetic effect due to enhanced norepinephrine storage in adrenergic neurons (MAOI activity) and increased liberation of catecholamines (indirect sympathomimetic activity). Although the interaction has primarily involved nonselective MAOIs, hypertensive crisis has been reported in a patient taking ephedrine with the recommended dosage of a selective MAO-B inhibitor.

MANAGEMENT: In general, indirect- and mixed-acting sympathomimetic agents should not be used concurrently with MAOIs or other agents that possess MAOI activity (e.g., furazolidone, methylene blue, procarbazine). At least 14 days should elapse between discontinuation of MAOI therapy and initiation of treatment with sympathomimetic agents.

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. 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
  3. Elis J, Laurence DR, Mattie H, Prichard BN (1967) "Modification by monoamine oxidase inhibitors of the effect of some sympathomimetics on blood pressure." Br Med J, 2, p. 75-8
  4. Davies B, Bannister R, Sever P (1978) "Pressor amines and monoamine-oxidase inhibitors for treatment of postural hypotension in autonomic failure: limitations and hazards." Lancet, 1, p. 172-5
  5. Goldberg LI (1964) "Monoamine oxidase inhibitors: adverse reactions and possible mechanisms." JAMA, 190, p. 456-62
  6. Horler AR, Wynne NA (1965) "Hypertensive crisis due to pargyline and metaraminol." Br Med J, 5459, p. 460-1
  7. Sjoqvist F (1965) "Psychotropic drugs (2) interaction between monoamine oxidase (MAO) inhibitors and other substances." Proc R Soc Med, 58, p. 967-78
  8. Harrison WM, McGrath PJ, Stewart JW, Quitkin F (1989) "MAOIs and hypertensive crises: the role of OTC drugs." J Clin Psychiatry, 50, p. 64-5
  9. Cuthbert MF, Greenberg MP, Morley SW (1969) "Cough and cold remedies: a potential danger to patients on monoamine oxidase inhibitors." Br Med J, 1, p. 404-6
  10. Humberstone PM (1969) "Hypertension from cold remedies." Br Med J, 1, p. 846
  11. Wright SP (1978) "Hazards with monoamine-oxidase inhibitors: a persistent problem." Lancet, 1, p. 284-5
  12. Schildkraut JJ, Klerman GL, Friend DG, Greenblatt M (1963) "Biochemical and pressor effects of oral d,l-dihydroxyphenylalanine in patients pretreated with antidepressant drugs." Ann N Y Acad Sci, 107, p. 1005-15
  13. Smookler S, Bermudez AJ (1982) "Hypertensive crisis resulting from an MAO inhibitor and an over-the-counter appetite suppressant." Ann Intern Med, 11, p. 482-4
  14. Mason AM, Buckle RM (1969) ""Cold" cures and monoamine-oxidase inhibitors." Br Med J, 1, p. 845-6
  15. Boakes AJ, Laurence DR, Teoh PC, Barar FS, Benedikter LT, Prichard BN (1973) "Interactions between sympathomimetic amines and antidepressant agents in man." Br Med J, 1, p. 311-5
  16. Goulet JP, Perusse R, Turcotte JY (1992) "Contraindications to vasoconstrictors in dentistry: Part III. Pharmacologic interactions." Oral Surg Oral Med Oral Pathol, 74, p. 692-7
  17. Ban TA (1975) "Drug interactions with psychoactive drugs." Dis Nerv Syst, 36, p. 164-6
  18. Lefebvre H, Noblet C, Morre N, Wolf LM (1995) "Pseudo-phaeochromocytoma after multiple drug interactions involving the selective monoamine oxidase inhibitor selegiline." Clin Endocrinol (Oxf), 42, p. 95-8
  19. Darcy PF, Griffin JP (1995) "Interactions with drugs used in the treatment of depressive illness." Adverse Drug React Toxicol Rev, 14, p. 211-31
  20. 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
  21. Kraft KE, Dore FH (1996) "Computerized drug interaction programs: how reliable?." JAMA, 275, p. 1087
View all 21 references

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Moderate

chlorpheniramine furazolidone

Applies to: Re-Drylex Jr (chlorpheniramine / methscopolamine / phenylephrine) and furazolidone

GENERALLY AVOID: Coadministration of monoamine oxidase inhibitors (MAOIs) and antihistamines may result in additive central nervous system depressant effects. In addition, limited data suggest that MAOIs may potentiate and prolong the anticholinergic effects of antihistamines due to inhibition of catecholamine degradation, which may lead to overstimulation of the sympathetic nervous system. In one published report, a woman who had been on phenelzine 30 mg/day for six months developed irritability and visual hallucinations two months following the addition of cyproheptadine 2 mg at bedtime to treat phenelzine-induced anorgasmia. The hallucinations cleared over 48 hours following the discontinuation of her medications. In another published report, a patient developed delirium with symptoms of aggression, paranoia, and vivid auditory as well as visual hallucinations after two days of receiving diphenhydramine 300 mg/day and linezolid 600 mg every 12 hours. The patient also had tachycardia, very warm skin, and possibly blurred vision (as evidenced by constant squinting). Central anticholinergic intoxication and dopaminergic hyperactivity were suspected. Symptoms subsided over four days following the discontinuation of diphenhydramine, while linezolid was continued with no subsequent sequelae. In a third report, a patient developed visual hallucinations associated with confusion and disorientation after nine days of linezolid and antihistamine therapy, including dexchlorpheniramine and cetirizine for the first four days and hydroxyzine for the next five. Physical examination did not reveal any focal neurological signs, myoclonus or ataxia, and cerebral CT scan and EEG were within normal limits. Symptoms resolved two days after linezolid was discontinued.

MANAGEMENT: Prescribing antihistamines in combination with MAOIs or other agents that possess MAOI activity (e.g., furazolidone, linezolid, procarbazine) should generally be avoided. If concomitant treatment is unavoidable, patients should be counseled to avoid hazardous activities requiring mental alertness and motor coordination until they know how these agents affect them, and to notify their physician if they experience excessive or prolonged CNS effects that interfere with their normal activities. It may be appropriate to monitor some patients for increased anticholinergic effects (e.g., constipation, urinary retention, fever, heat intolerance, blurred vision, confusion, hallucinations, dizziness, palpitations, arrhythmias, syncope), since certain populations such as the elderly and those with underlying organic brain disease tend to be more sensitive to these effects and may be susceptible to anticholinergic intoxication. It should be noted that the manufacturers of many of the sedating antihistamines (e.g., chlorpheniramine, dexchlorpheniramine, diphenhydramine, pheniramine, promethazine) consider their use within 14 days of MAOIs to be contraindicated.

References

  1. Kahn DA (1987) "Possible toxic interaction between cyproheptadine and phenelzine." Am J Psychiatry, 144, p. 1242-3
  2. (2002) "Product Information. Periactin (cyproheptadine)." Merck & Co., Inc
  3. (2002) "Product Information. Benadryl (diphenhydramine)." Parke-Davis
  4. (2001) "Product Information. Matulane (procarbazine)." Roche Laboratories
  5. Serio RN (2004) "Acute delirium associated with combined diphenhydramine and linezolid use." Ann Pharmacother, 38, p. 62-5
  6. Ferry T, Ponceau B, Simon M, et al. (2005) "Possibly linezolid-induced peripheral and central neurotoxicity: report of four cases." Infection, 33, p. 151-4
  7. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  8. Canadian Pharmacists Association (2006) e-CPS. http://www.pharmacists.ca/function/Subscriptions/ecps.cfm?link=eCPS_quikLink
  9. Cerner Multum, Inc. "Australian Product Information."
View all 9 references

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Moderate

chlorpheniramine methscopolamine

Applies to: Re-Drylex Jr (chlorpheniramine / methscopolamine / phenylephrine) and Re-Drylex Jr (chlorpheniramine / methscopolamine / phenylephrine)

MONITOR: Agents with anticholinergic properties (e.g., sedating antihistamines; antispasmodics; neuroleptics; phenothiazines; skeletal muscle relaxants; tricyclic antidepressants; disopyramide) may have additive effects when used in combination. Excessive parasympatholytic effects may result in paralytic ileus, hyperthermia, heat stroke, and the anticholinergic intoxication syndrome. Peripheral symptoms of intoxication commonly include mydriasis, blurred vision, flushed face, fever, dry skin and mucous membranes, tachycardia, urinary retention, and constipation. Central symptoms may include memory loss, disorientation, incoherence, hallucinations, psychosis, delirium, hyperactivity, twitching or jerking movements, stereotypy, and seizures. Central nervous system-depressant effects may also be additively or synergistically increased when these agents are combined, especially in elderly or debilitated patients. Use of neuroleptics in combination with other neuroleptics or anticholinergic agents may increase the risk of tardive dyskinesia. In addition, some neuroleptics and tricyclic antidepressants may cause prolongation of the QT interval and theoretically, concurrent use of two or more drugs that can cause QT interval prolongation may result in additive effects and increased risk of ventricular arrhythmias including torsade de pointes and sudden death.

MANAGEMENT: Caution is advised when agents with anticholinergic properties are combined, particularly in the elderly and those with underlying organic brain disease, who tend to be more sensitive to the central anticholinergic effects of these drugs and in whom toxicity symptoms may be easily overlooked. Patients should be advised to notify their physician promptly if they experience potential symptoms of anticholinergic intoxication such as abdominal pain, fever, heat intolerance, blurred vision, confusion, and/or hallucinations. Ambulatory patients should be counseled to avoid activities requiring mental alertness until they know how these agents affect them. A reduction in anticholinergic dosages may be necessary if excessive adverse effects develop.

References

  1. Stadnyk AN, Glezos JD (1983) "Drug-induced heat stroke." Can Med Assoc J, 128, p. 957-9
  2. Zelman S, Guillan R (1970) "Heat stroke in phenothiazine-treated patients: a report of three fatalities." Am J Psychiatry, 126, p. 1787-90
  3. Mann SC, Boger WP (1978) "Psychotropic drugs, summer heat and humidity, and hyperplexia: a danger restated." Am J Psychiatry, 135, p. 1097-100
  4. Warnes H, Lehmann HE, Ban TA (1967) "Adynamic ileus during psychoactive medication: a report of three fatal and five severe cases." Can Med Assoc J, 96, p. 1112-3
  5. Gershon S, Neubauer H, Sundland DM (1965) "Interaction between some anticholinergic agents and phenothiazines." Clin Pharmacol Ther, 6, p. 749-56
  6. Sarnquist F, Larson CP Jr (1973) "Drug-induced heat stroke." Anesthesiology, 39, p. 348-50
  7. Johnson AL, Hollister LE, Berger PA (1981) "The anticholinergic intoxication syndrome: diagnosis and treatment." J Clin Psychiatry, 42, p. 313-7
  8. Lee BS (1986) "Possibility of hyperpyrexia with antipsychotic and anticholinergic drugs." J Clin Psychiatry, 47, p. 571
  9. Forester D (1978) "Fatal drug-induced heat stroke." JACEP, 7, p. 243-4
  10. Moreau A, Jones BD, Banno V (1986) "Chronic central anticholinergic toxicity in manic depressive illness mimicking dementia." Can J Psychiatry, 31, p. 339-41
  11. Hvizdos AJ, Bennett JA, Wells BG, Rappaport KB, Mendel SA (1983) "Anticholinergic psychosis in a patient receiving usual doses of haloperidol." Clin Pharm, 2, p. 174-8
  12. Cohen MA, Alfonso CA, Mosquera M (1994) "Development of urinary retention during treatment with clozapine and meclizine [published erratum appears in Am J Psychiatry 1994 Jun;151(6):952]." Am J Psychiatry, 151, p. 619-20
  13. (2001) "Product Information. Cogentin (benztropine)." Merck & Co., Inc
  14. Kulik AV, Wilbur R (1982) "Delirium and stereotypy from anticholinergic antiparkinson drugs." Prog Neuropsychopharmacol Biol Psychiatry, 6, p. 75-82
  15. (2001) "Product Information. Artane (trihexyphenidyl)." Lederle Laboratories
View all 15 references

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Moderate

phenylephrine methscopolamine

Applies to: Re-Drylex Jr (chlorpheniramine / methscopolamine / phenylephrine) and Re-Drylex Jr (chlorpheniramine / methscopolamine / phenylephrine)

MONITOR: The pressor response to phenylephrine may be potentiated by the vagolytic effect of atropine, which inhibits the reflex bradycardia that would normally accompany any increases in blood pressure induced by phenylephrine. Other antimuscarinic agents may also participate in this interaction, although clinical data are lacking. In one report, pseudo-pheochromocytoma (i.e., significant increases in blood pressure and tachycardia) occurred in seven patients who underwent eye surgery and were given phenylephrine 10% ophthalmic solution and systemic atropine, three of whom subsequently developed left ventricular failure and pulmonary edema that required intensive care monitoring. Two patients had preexisting hypertension, while others had no known history of cardiovascular disease. All had received general anesthesia with propofol, phenoperidine, and vecuronium. Since phenylephrine use alone may be associated with cardiovascular toxicities including hypertension, arrhythmia, myocardial infarction and cardiac failure, the extent of involvement by atropine is uncertain. The authors reported no further cardiovascular events following implementation of various measures that reduced phenylephrine dosage and systemic exposure, including: use of a milder strength of phenylephrine ophthalmic solution; swabbing to minimize drainage into the nasolachrymal duct to the nasal mucosa; and use of a cannula to reduce drop size. In a study of six healthy volunteers, diastolic and systolic blood pressure increased by 4 mmHg following administration of phenylephrine (0.42 mcg/kg/min), compared to 17 mmHg when phenylephrine was given after three doses of atropine (0.02, 0.01 and 0.01 mg/kg at 30 minute intervals).

MANAGEMENT: Caution is advised if phenylephrine (systemic or ophthalmic) is used in combination with atropine or other antimuscarinic agents. Cardiovascular status, including blood pressure and heart rate, should be closely monitored. When using ophthalmic formulations, measures to minimize systemic absorption should be employed, such as digital compression of the lacrimal sac or lid closure after instillation. A milder strength (< 10%) is preferable if phenylephrine ophthalmic solution is given.

References

  1. Daelman F, Andrejak M, Rajaonarivony D, Bryselbout E, Jezraoui P, Ossart M (1994) "Phenylephrine eyedrops, systemic atropine and cardiovascular adverse events." Therapie, 49, p. 467
  2. Fraunfelder FT, Fraunfelder FW; Randall JA (2001) "Drug-Induced Ocular Side Effects" Boston, MA: Butterworth-Heinemann
  3. Lai YK (1989) "Adverse effect of intraoperative phenylephrine 10%: case report." Br J Ophthalmol, 73, p. 468-9
  4. Van Der Spek AF, Hantler CB (1986) "Phenylephrine eyedrops and anesthesia." Anesthesiology, 64, p. 812-4
  5. Levine MA, Leenen FH (1992) "Role of vagal activity in the cardiovascular responses to phenylephrine in man." Br J Clin Pharmacol, 33, p. 333-6
View all 5 references

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Drug and food interactions

Major

furazolidone food

Applies to: furazolidone

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

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Moderate

chlorpheniramine food

Applies to: Re-Drylex Jr (chlorpheniramine / methscopolamine / phenylephrine)

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

MANAGEMENT: Patients receiving CNS-active agents should be warned of this interaction and advised to avoid or limit consumption of alcohol. Ambulatory patients should be counseled to avoid hazardous activities requiring complete mental alertness and motor coordination until they know how these agents affect them, and to notify their physician if they experience excessive or prolonged CNS effects that interfere with their normal activities.

References

  1. Warrington SJ, Ankier SI, Turner P (1986) "Evaluation of possible interactions between ethanol and trazodone or amitriptyline." Neuropsychobiology, 15, p. 31-7
  2. Gilman AG, eds., Nies AS, Rall TW, Taylor P (1990) "Goodman and Gilman's the Pharmacological Basis of Therapeutics." New York, NY: Pergamon Press Inc.
  3. (2012) "Product Information. Fycompa (perampanel)." Eisai Inc
  4. (2015) "Product Information. Rexulti (brexpiprazole)." Otsuka American Pharmaceuticals Inc
View all 4 references

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Moderate

methscopolamine food

Applies to: Re-Drylex Jr (chlorpheniramine / methscopolamine / phenylephrine)

GENERALLY AVOID: Use of anticholinergic agents with alcohol may result in sufficient impairment of attention so as to render driving and operating machinery more hazardous. In addition, the potential for abuse may be increased with the combination. The mechanism of interaction is not established but may involve additive depressant effects on the central nervous system. No effect of oral propantheline or atropine on blood alcohol levels was observed in healthy volunteers when administered before ingestion of a standard ethanol load. However, one study found impairment of attention in subjects given atropine 0.5 mg or glycopyrrolate 1 mg in combination with alcohol.

MANAGEMENT: Alcohol should generally be avoided during therapy with anticholinergic agents. Patients should be counseled to avoid activities requiring mental alertness until they know how these agents affect them.

References

  1. Linnoila M (1973) "Drug effects on psychomotor skills related to driving: interaction of atropine, glycopyrrhonium and alcohol." Eur J Clin Pharmacol, 6, p. 107-12

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Moderate

phenylephrine food

Applies to: Re-Drylex Jr (chlorpheniramine / methscopolamine / phenylephrine)

MONITOR: Coadministration of two or more sympathomimetic agents may increase the risk of adverse effects such as nervousness, irritability, and increased heart rate. Central nervous system (CNS) stimulants, particularly amphetamines, can potentiate the adrenergic response to vasopressors and other sympathomimetic agents. Additive increases in blood pressure and heart rate may occur due to enhanced peripheral sympathetic activity.

MANAGEMENT: Caution is advised if two or more sympathomimetic agents are coadministered. Pulse and blood pressure should be closely monitored.

References

  1. Rosenblatt JE, Lake CR, van Kammen DP, Ziegler MG, Bunney WE Jr (1979) "Interactions of amphetamine, pimozide, and lithium on plasma norepineophrine and dopamine-beta-hydroxylase in schizophrenic patients." Psychiatry Res, 1, p. 45-52
  2. Cavanaugh JH, Griffith JD, Oates JA (1970) "Effect of amphetamine on the pressor response to tyramine: formation of p-hydroxynorephedrine from amphetamine in man." Clin Pharmacol Ther, 11, p. 656
  3. (2001) "Product Information. Adderall (amphetamine-dextroamphetamine)." Shire Richwood Pharmaceutical Company Inc
  4. (2001) "Product Information. Tenuate (diethylpropion)." Aventis Pharmaceuticals
  5. (2001) "Product Information. Sanorex (mazindol)." Novartis Pharmaceuticals
  6. (2001) "Product Information. Focalin (dexmethylphenidate)." Mikart Inc
  7. (2002) "Product Information. Strattera (atomoxetine)." Lilly, Eli and Company
View all 7 references

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Therapeutic duplication warnings

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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

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