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Cyproheptadine Pregnancy and Breastfeeding Warnings

Cyproheptadine is also known as: Periactin

Medically reviewed by Last updated on Sep 30, 2019.

Cyproheptadine Pregnancy Warnings

Cyproheptadine, an antiserotonin agent, has been studied in habitual aborters with increased serotonin levels. No malformations have been reported. One woman treated with cyproheptadine for Cushing's syndrome through the first trimester gave birth to a healthy infant. Another woman treated throughout pregnancy gave birth to a normal infant which died at 4 months of gastroenteritis.

Cyproheptadine has been assigned to pregnancy category B by the FDA. Animal studies have failed to reveal evidence of fetal harm. There are no controlled data in human pregnancy. Cyproheptadine is only recommended for use during pregnancy when benefit outweighs risk.

See references

Cyproheptadine Breastfeeding Warnings

There are no data on the excretion of cyproheptadine into human milk. The manufacturer recommends that due to the potential for serious adverse reactions in nursing infants, a decision should be made to discontinue nursing or discontinue the drug, taking into account the importance of the drug to the mother.

See references

References for pregnancy information

  1. Kasperlik-Zaluska A, Migdalska B, Hartwig W, Wilczynska J, Marianowski L, Stopinska-Gluszak U, Lozinska D "Two pregnancies in a woman with Cushing's syndrome treated with cyproheptadine. Case report." Br J Obstet Gynaecol 87 (1980): 1171-3
  2. "Product Information. Periactin (cyproheptadine)." Merck & Co, Inc, West Point, PA.
  3. Sadovsky E, Pfeifer Y, Polishuk WA, Sulman FG "The use of antiserotonin-cyproheptadine HCL in pregnancy: an experimental and clinical study." Adv Exp Med Biol 27: (1972): 399-405
  4. Khir AS, How J, Bewsher PD "Successful pregnancy after cyproheptadine treatment for Cushing's disease." Eur J Obstet Gynecol Reprod Biol 13 (1982): 343-7

References for breastfeeding information

  1. "Product Information. Periactin (cyproheptadine)." Merck & Co, Inc, West Point, PA.

Further information

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