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Drug Interactions between abrocitinib and Tuinal

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

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Interactions between your drugs

Moderate

amobarbital secobarbital

Applies to: Tuinal (amobarbital / secobarbital) and Tuinal (amobarbital / secobarbital)

MONITOR: Central nervous system- and/or respiratory-depressant effects may be additively or synergistically increased in patients taking multiple drugs that cause these effects, especially in elderly or debilitated patients. Sedation and impairment of attention, judgment, thinking, and psychomotor skills may increase.

MANAGEMENT: During concomitant use of these drugs, patients should be monitored for potentially excessive or prolonged CNS and respiratory depression. Cautious dosage titration may be required, particularly at treatment initiation. Ambulatory 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.

References (36)
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Moderate

amobarbital abrocitinib

Applies to: Tuinal (amobarbital / secobarbital) and abrocitinib

MONITOR: Coadministration with inducers of CYP450 2C19 and/or 2C9 may decrease the plasma concentrations of abrocitinib, which is primarily metabolized by CYP450 2C19 (approximately 53%) and 2C9 (30%) and to a lesser extent by CYP450 3A4 (11%) and 2B6 (6%) based on in vitro data. When a 200 mg dose of abrocitinib was administered following multiple dosing with rifampicin, a potent CYP450 2C19 and 3A4 inducer and a moderate CYP450 2C9 and 2B6 inducer, the sum systemic exposure (AUC) of unbound abrocitinib plus its two active mono-hydroxylated metabolites, M1 (3-hydroxypropyl) and M2 (2-hydroxypropyl), decreased by approximately 56%. No data are available for other, less potent CYP450 2C19 or 2C9 inducers.

MANAGEMENT: The potential for diminished pharmacologic effects of abrocitinib should be considered during coadministration with CYP450 2C19 or 2C9 inducers. Alternative treatments may be required if an interaction is suspected.

References (2)
  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. (2022) "Product Information. Cibinqo (abrocitinib)." Pfizer U.S. Pharmaceuticals Group
Moderate

secobarbital abrocitinib

Applies to: Tuinal (amobarbital / secobarbital) and abrocitinib

MONITOR: Coadministration with inducers of CYP450 2C19 and/or 2C9 may decrease the plasma concentrations of abrocitinib, which is primarily metabolized by CYP450 2C19 (approximately 53%) and 2C9 (30%) and to a lesser extent by CYP450 3A4 (11%) and 2B6 (6%) based on in vitro data. When a 200 mg dose of abrocitinib was administered following multiple dosing with rifampicin, a potent CYP450 2C19 and 3A4 inducer and a moderate CYP450 2C9 and 2B6 inducer, the sum systemic exposure (AUC) of unbound abrocitinib plus its two active mono-hydroxylated metabolites, M1 (3-hydroxypropyl) and M2 (2-hydroxypropyl), decreased by approximately 56%. No data are available for other, less potent CYP450 2C19 or 2C9 inducers.

MANAGEMENT: The potential for diminished pharmacologic effects of abrocitinib should be considered during coadministration with CYP450 2C19 or 2C9 inducers. Alternative treatments may be required if an interaction is suspected.

References (2)
  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. (2022) "Product Information. Cibinqo (abrocitinib)." Pfizer U.S. Pharmaceuticals Group

Drug and food interactions

Major

amobarbital food

Applies to: Tuinal (amobarbital / secobarbital)

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 (5)
  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
Major

secobarbital food

Applies to: Tuinal (amobarbital / secobarbital)

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 (5)
  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
Moderate

abrocitinib food

Applies to: abrocitinib

MONITOR: Smoking during treatment with abrocitinib may increase the risk of major adverse cardiovascular events (MACE) and the risk of developing malignancies. During abrocitinib clinical studies, current or past smokers had an additional increased risk of overall malignancies. Also, abrocitinib may increase patients' risk of MACE, including myocardial infarction, stroke, and cardiovascular death.

Administration of abrocitinib with high-fat, high-calorie food increased abrocitinib peak plasma concentration (Cmax) and systemic exposure (AUC) by 29% and 26%, respectively, and prolonged the time to reach Cmax by 2 hours. These changes are not considered clinically relevant.

MANAGEMENT: Caution is advised if abrocitinib is prescribed to current or past smokers. Patients should be informed about the symptoms of serious cardiovascular events and the steps to take if they occur. The manufacturer recommends discontinuing abrocitinib in patients that have experienced a myocardial infarction or stroke. Abrocitinib may be taken with or without food.

References (1)
  1. (2022) "Product Information. Cibinqo (abrocitinib)." Pfizer U.S. Pharmaceuticals Group

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

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

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