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Hyoscyamine Pregnancy and Breastfeeding Warnings

Hyoscyamine is also known as: A-Spas S/L, Anaspaz, Colidrops, Cystospaz, Cystospaz-M, Donnamar, Ed-Spaz, Gastrosed, HyoMax, HyoMax DT, Hyosol, Hyospaz, Hyosyne, IB-Stat, Levbid, Levsin, Levsin SL, Levsinex, Levsinex SR, NuLev, Oscimin, Spasdel, Symax Duotab, Symax FasTab, Symax SL

Medically reviewed by Drugs.com. Last updated on Nov 10, 2021.

Hyoscyamine Pregnancy Warnings

This drug should be used during pregnancy only if clearly needed.

AU TGA pregnancy category: B2
US FDA pregnancy category: C

Animal studies have not been conducted. This drug crosses the placenta. It is unknown if this drug can cause fetal harm or affect reproduction capacity. There are no controlled data in human pregnancy.

AU TGA pregnancy category B2: Drugs which have been taken by only a limited number of pregnant women and women of childbearing age, without an increase in the frequency of malformation or other direct or indirect harmful effects on the human fetus having been observed. Studies in animals are inadequate or may be lacking, but available data show no evidence of an increased occurrence of fetal damage.

US FDA pregnancy category C: Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.

See references

Hyoscyamine Breastfeeding Warnings

Use is not recommended.

Excreted into human milk: Yes

See references

References for pregnancy information

  1. "Product Information. Levbid (hyoscyamine)." Alaven Pharmaceuticals, Marietta, GA.
  2. "Product Information. Symax SR (hyoscyamine)." Capellon Pharmaceuticals, Fort Worth, TX.
  3. "Product Information. Anaspaz (hyoscyamine)." Ascher, B.F. and Company Inc, Lenexa, KS.
  4. "Product Information. Hyosyne (hyoscyamine)." Silarx Pharmaceuticals Inc, Spring Valley, NY.
  5. "Product Information. Oscimin (hyoscyamine)." Larken Laboratories Inc, Madison, MS.
  6. "Product Information. Levsin SL (hyoscyamine)." Alaven Pharmaceuticals, Marietta, GA.
  7. "Product Information. Symax SL (hyoscyamine)." Capellon Pharmaceuticals, Fort Worth, TX.
  8. "Product Information. Symax Duotab (hyoscyamine)." Capellon Pharmaceuticals, Fort Worth, TX.
  9. "Product Information. NuLev (hyoscyamine)." Alaven Pharmaceuticals, Marietta, GA.

References for breastfeeding information

  1. "Product Information. Oscimin (hyoscyamine)." Larken Laboratories Inc, Madison, MS.
  2. "Product Information. Symax SL (hyoscyamine)." Capellon Pharmaceuticals, Fort Worth, TX.
  3. "Product Information. Hyosyne (hyoscyamine)." Silarx Pharmaceuticals Inc, Spring Valley, NY.
  4. "Product Information. Symax SR (hyoscyamine)." Capellon Pharmaceuticals, Fort Worth, TX.
  5. "Product Information. NuLev (hyoscyamine)." Alaven Pharmaceuticals, Marietta, GA.
  6. "Product Information. Anaspaz (hyoscyamine)." Ascher, B.F. and Company Inc, Lenexa, KS.
  7. "Product Information. Symax Duotab (hyoscyamine)." Capellon Pharmaceuticals, Fort Worth, TX.
  8. "Product Information. Levbid (hyoscyamine)." Alaven Pharmaceuticals, Marietta, GA.
  9. "Product Information. Levsin SL (hyoscyamine)." Alaven Pharmaceuticals, Marietta, GA.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.