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Drug Interactions between doxazosin and lasmiditan

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

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Interactions between your drugs

Moderate

doxazosin lasmiditan

Applies to: doxazosin and lasmiditan

MONITOR: Coadministration with alcohol or other central nervous system (CNS) depressants may enhance the sedative effects of lasmiditan and increase the likelihood and/or severity of cognitive and/or neuropsychiatric adverse reactions. Patients treated with lasmiditan are at risk of CNS depression, including dizziness and sedation, as well as driving impairment. In clinical studies, dizziness and sedation were reported in up to 17% and 7%, respectively, of patients receiving lasmiditan, and dizziness was the most common adverse event resulting in discontinuation (greater than 2%). In a computer-based driving study, a significant, dose-dependent impairment of subjects' ability to drive was observed with single 50, 100, and 200 mg lasmiditan doses at 90 minutes after administration. Concomitant use of lasmiditan and CNS depressants has not been studied clinically.

MANAGEMENT: Caution is advised during coadministration of lasmiditan with alcohol, other CNS depressants, or other agents that cause sedation. Patients should be advised against driving and other activities that require complete mental alertness for at least 8 hours after lasmiditan is administered.

References (1)
  1. (2019) "Product Information. Reyvow (lasmiditan)." Lilly, Eli and Company

Drug and food interactions

Moderate

doxazosin food

Applies to: doxazosin

GENERALLY AVOID: The concurrent use of ethanol and alpha-1 adrenergic blockers may cause increased hypotensive effects. Patients with aldehyde dehydrogenase deficiencies (primarily Asians) may be at a higher risk of this interaction. The mechanism has not been determined. Data exist for prazosin and other alpha adrenergic blockers are expected to interact also. In addition, any patients taking alpha adrenergic blockers may experience excessive orthostatic hypotension with ethanol ingestion, due to ethanol's unopposed vasodilatory effects in the presence of alpha adrenergic blockade.

MANAGEMENT: Patients who develop a flushing reaction after ethanol ingestion (indicates a possible aldehyde dehydrogenase deficiency) should be advised to avoid ethanol or limit their intake. All patients should be warned about the possibility of orthostatic hypotension with concurrent ethanol use.

References (2)
  1. Kawano Y, Abe H, Kojima S, Takishita S, Omae T (2000) "Interaction of alcohol and an a1-blocker on ambulatory blood pressure in patients with essential hypertension." Am J Hypertens, 13, p. 307-12
  2. (2002) "Product Information. Xatral (alfuzosin)." Sanofi-Synthelabo Canada Inc

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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