zaleplon, Sonata (cont.)

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PREPARATIONS: Capsules: 5 and 10 mg

DRUG INTERACTIONS: Rifampin reduces the amount of zaleplon in the blood by more than 80%. This could lead to a decrease in zaleplon's activity. Cimetidine (Tagamet) can increase the amount of zaleplon in the blood by 85% by reducing the breakdown of zaleplon in the liver. If cimetidine must be used, lower doses of zaleplon are suggested. Ketoconazole (Nizoral, Extina, Xolegel, Kuric), erythromycin and similar drugs that reduce breakdown of drugs in the liver also increase blood concentrations of zaleplon. The drowsiness that can occur with zaleplon is accentuated by alcohol, and, therefore, patients taking zaleplon should not drink alcoholic beverages. Imipramine (Tofranil, Tofranil-PM) and thioridazine also increase drowsiness when combined with zaleplon.

PREGNANCY AND BREASTFEEDING SAFETY: There are no studies of zaleplon in pregnant women. In studies in rats, damage to fetuses were reported. Therefore, zaleplon is not recommended for pregnant women unless the physician feels the benefits outweigh the potential risks.

A small amount of zaleplon is excreted in breast milk. Because the effects of zaleplon on nursing infants are unknown, it is recommended that nursing mothers not take zaleplon.

Medically Reviewed by a Doctor on 1/5/2016

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