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Drug Interactions between Anafranil and C-Topical Solution

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

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Interactions between your drugs

Major

clomiPRAMINE cocaine topical

Applies to: Anafranil (clomipramine) and C-Topical Solution (cocaine topical)

GENERALLY AVOID: Concomitant use of cocaine with sympathomimetic agents such as epinephrine and phenylephrine may lead to additive cardiovascular effects. The proposed mechanism involves increased circulating catecholamines and increased activity of the sympathetic nervous system. Locally administered cocaine and epinephrine have been used in combination during septal surgery; however, concerns regarding cardiovascular side effects have been raised. Myocardial ischemia, myocardial infarction, and ventricular arrhythmias have been reported following coadministration of topical intranasal cocaine with epinephrine and phenylephrine during nasal and sinus surgery. Cases documenting the development of arrhythmias after the nasal application of cocaine and epinephrine 25%-0.18% topical paste have also been reported in 2 children and one adult receiving general anesthesia. However, the dosage of cocaine administered in these cases was above the maximum recommended dose in fit adults (1.5 mg/kg).

MANAGEMENT: Concomitant use of cocaine with sympathomimetic agents should be avoided. If coadministration is required, prolonged vital sign and ECG monitoring may be necessary.

References

  1. (2022) "Product Information. Adrenalin (EPINEPHrine)." Apothecon Inc
  2. Nicholson K, Rogers J (1995) "Cocaine and adrenaline paste: a fatal combination?" Br Med J, 311, p. 250-1
  3. (2003) "Product Information. Cocaine Hydrochloride (cocaine topical)." Mallinckrodt Medical Inc
  4. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  5. (2018) "Product Information. Cocaine Hydrochloride Nasal (cocaine nasal)." Genus Lifesciences Inc.
  6. Thevasagyam M, Jindal M, Allsop P, Oates J (2007) "Does epinephrine infiltration in septoplasty make any difference?" Eur Arch Otorhinolaryngol, 264, p. 1175-8
  7. Kara CO, Kaftan A, Atalay H, Pinar HS, Ogmen G (2001) "Cardiovascular safety of cocaine anaesthesia in the presence of adrenaline during septal surger." J Otolaryngol, 30, p. 145-8
View all 7 references

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Drug and food interactions

Moderate

clomiPRAMINE food

Applies to: Anafranil (clomipramine)

MONITOR: Limited data suggest that the administration of clomipramine with grapefruit juice or cranberry juice may significantly increase plasma drug concentrations of clomipramine. Clomipramine is initially demethylated by CYP450 1A2, 3A3 and 3A4 before undergoing further metabolism to 8-hydroxyclomipramine. The increase in clomipramine bioavailability may stem from inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruits. The precise mechanism by which cranberry juice exerts its effects is unknown, but may involve inhibition of CYP450 isoenzymes. This interaction has occasionally been exploited in attempts to improve symptomatic control of obsessive compulsive disorder.

MANAGEMENT: Patients receiving clomipramine therapy who ingest cranberry juice, grapefruits, or grapefruit juice should be monitored for adverse effects and undue fluctuations in plasma drug levels.

References

  1. Oesterheld J, Kallepalli BR (1997) "Grapefruit juice and clomipramine: shifting metabolitic ratios." J Clin Psychopharmacol, 17, p. 62-3
  2. Bailey DG, Dresser GR, Kreeft JH, Munoz C, Freeman DJ, Bend JR (2000) "Grapefruit-felodipine interaction: Effect of unprocessed fruit and probable active ingredients." Clin Pharmacol Ther, 68, p. 468-77
  3. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  4. Cerner Multum, Inc. "Australian Product Information."
View all 4 references

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Moderate

clomiPRAMINE food

Applies to: Anafranil (clomipramine)

GENERALLY AVOID: The combination of ethanol and a tricyclic antidepressant may result in additive impairment of motor skills, especially driving skills. Also, one study has suggested that clomipramine metabolism is significantly impaired for several weeks or more following discontinuation of chronic alcohol consumption.

MANAGEMENT: Patients should be warned of this interaction and advised to limit their ethanol intake while taking tricyclic antidepressants. Monitoring for TCA toxicity (CNS depression, excessive anticholinergic effects, hypotension, arrhythmias) is recommended during alcohol withdrawal.

References

  1. Seppala T, Linnoila M, Elonen E, Mattila MJ, Makl M (1975) "Effect of tricyclic antidepressants and alcohol on psychomotor skills related to driving." Clin Pharmacol Ther, 17, p. 515-22
  2. Berlin I, Cournot A, Zimmer R, et al. (1990) "Evaluation and comparison of the interaction between alcohol and moclobemide or clomipramine in healthy subjects." Psychopharmacology (Berl), 100, p. 40-5
  3. Balant-Gorgia AE, Gay M, Gex-Fabry M, Balant LP (1992) "Persistent impairment of clomipramine demethylation in recently detoxified alcoholic patients." Ther Drug Monit, 14, p. 119-24

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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.

See also

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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.

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