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Fioricet Drug Interaction (5)

Chlorpheniramine; Pseudoephedrine: (Moderate) Additive CNS depression may occur if barbiturates are co-used with sedating antihistamines, such as chlorpheniramine. Monitor for additive CNS and respiratory effects,…

White Fioricet

Fioricet Drug Interaction (4)

Chlordiazepoxide; Amitriptyline: (Moderate) Additive CNS and/or respiratory depression may occur. Additionally, barbiturates may increase the metabolism of chlordiazepoxide. Chlordiazepoxide is a CYP3A4 substrate. Barbiturates are…