ADVERSE REACTIONS
The most frequent adverse reactions are drowsiness and dizziness. Less frequent adverse reactions are lightheadedness and gastrointestinal disturbances including nausea, vomiting, and flatulence. A single incidence of bone marrow suppression has been reported with the use of Fiorinal. Several cases of dermatological reactions including toxic epidermal necrolysis and erythema multiforme have been reported.
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