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Drug Interactions between Butisol Sodium and clomipramine

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

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Interactions between your drugs

Moderate

clomiPRAMINE butabarbital

Applies to: clomipramine and Butisol Sodium (butabarbital)

MONITOR: Tricyclic antidepressants may counteract the anticonvulsive effects of barbiturates by lowering the seizure threshold. Barbiturates may decrease the serum levels and effects of tricyclic antidepressants by induction of hepatic metabolism. In addition, the respiratory-depressant effects of both agents may be increased due to additive pharmacologic effects.

MANAGEMENT: If the barbiturate is being taken for a seizure disorder, patients should be closely monitored for loss of seizure control. Dose adjustments may be required. Monitoring for clinical evidence of additive toxicity and for clinical and/or laboratory evidence of reduced antidepressant effect is also advisable.

References

  1. Crocker J, Morton B (1969) "Tricyclic (antidepressant) drug toxicity." Clin Toxicol, 2, p. 397-402
  2. Burrows GD, Davies B (1971) "Antidepressants and barbiturates." Br Med J, 4, p. 113
  3. Silverman G, Braithwaite R (1972) "Interaction of benzodiazepines with tricyclic antidepressants." Br Med J, 4, p. 111
  4. Spina E, Avenoso A, Campo GM, Caputi AP, Perucca E (1996) "Phenobarbital induces the 2-hydroxylation of desipramine." Ther Drug Monit, 18, p. 60-4
  5. Garey KW, Amsden GW, Johns CA (1997) "Possible interaction between imipramine and butalbital." Pharmacotherapy, 17, p. 1041-2
View all 5 references

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Drug and food interactions

Major

butabarbital food

Applies to: Butisol Sodium (butabarbital)

GENERALLY AVOID: Concurrent acute use of barbiturates and ethanol may result in additive CNS effects, including impaired coordination, sedation, and death. Tolerance of these agents may occur with chronic use. The mechanism is related to inhibition of microsomal enzymes acutely and induction of hepatic microsomal enzymes chronically.

MANAGEMENT: The combination of ethanol and barbiturates should be avoided.

References

  1. Gupta RC, Kofoed J (1966) "Toxological statistics for barbiturates, other sedatives, and tranquilizers in Ontario: a 10-year survey." Can Med Assoc J, 94, p. 863-5
  2. Misra PS, Lefevre A, Ishii H, Rubin E, Lieber CS (1971) "Increase of ethanol, meprobamate and pentobarbital metabolism after chronic ethanol administration in man and in rats." Am J Med, 51, p. 346-51
  3. Saario I, Linnoila M (1976) "Effect of subacute treatment with hypnotics, alone or in combination with alcohol, on psychomotor skills related to driving." Acta Pharmacol Toxicol (Copenh), 38, p. 382-92
  4. Stead AH, Moffat AC (1983) "Quantification of the interaction between barbiturates and alcohol and interpretation of fatal blood concentrations." Hum Toxicol, 2, p. 5-14
  5. Seixas FA (1979) "Drug/alcohol interactions: avert potential dangers." Geriatrics, 34, p. 89-102
View all 5 references

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Moderate

clomiPRAMINE food

Applies to: 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: 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.

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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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