Hyoscyamine Pregnancy and Breastfeeding Warnings
Hyoscyamine is also known as: A-Spas S/L, Anaspaz, Cystospaz, Cystospaz-M, Donnamar, Ed-Spaz, Gastrosed, HyoMax, HyoMax DT, HyoMax SL, Hyosol, Hyospaz, Hyosyne, IB-Stat, Levbid, Levsin, Levsin SL, Levsinex, Levsinex SR, NuLev, Oscimin, Spasdel, Symax Duotab, Symax FasTab, Symax SL
Hyoscyamine Pregnancy Warnings
Hyoscyamine has been assigned to pregnancy category C by the FDA. Animal studies have not been reported. There are no controlled data in human pregnancy. Hyoscyamine is only recommended for use during pregnancy when there are no alternatives and benefit outweighs risk.
Hyoscyamine Breastfeeding Warnings
There are no data on the excretion of hyoscyamine into human milk. Some experts recommend cautious use of hyoscyamine during breast-feeding due to the sensitivity of the neonate to anticholinergic agents (probably because of immaturity of motor endplates). Hyoscyamine is considered compatible with breast-feeding by the American Academy of Pediatrics.
References for pregnancy information
- Briggs GG, Freeman RK, Yaffe SJ.. "Drugs in Pregnancy and Lactation. 5th ed." Baltimore, MD: Williams & Wilkins (1998):
- "Product Information. Levsin (L-hyoscyamine)." Schwarz Pharma, Mequon, WI.
References for breastfeeding information
- Briggs GG, Freeman RK, Yaffe SJ.. "Drugs in Pregnancy and Lactation. 5th ed." Baltimore, MD: Williams & Wilkins (1998):
- "Product Information. Levsin (L-hyoscyamine)." Schwarz Pharma, Mequon, WI.
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