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Pindolol Pregnancy and Breastfeeding Warnings

Pindolol is also known as: Visken

Pindolol Pregnancy Warnings

Pindolol has been assigned to pregnancy category B by the FDA. Animal studies have failed to reveal evidence of embryotoxicity or teratogenicity. There are no controlled data in human pregnancy. Pindolol should only be given during pregnancy when need has been clearly established.

Beta-blockers, including pindolol, are generally considered relatively safe during pregnancy. Pindolol crosses the human placenta. The average maternal serum to umbilical cord pindolol concentration ratio is 0.37 and 0.67 two and four hours after dosing, respectively. No reports of teratogenicity have been associated with pindolol, but there are limited data to show significantly decreased birth weight among the offspring whose mothers were treated with pindolol. In one (uncontrolled) study, over one third of the infants from hypertensive mothers who had received pindolol were of low birth weight. Because this study is uncontrolled, and the expected incidence of low birth weight babies exceeds one-third among women with hypertension, no clear cause-and-effect relationship between the use of pindolol and low birth weight can be made. While there are no reports of signs or symptoms of beta-blockade among infants whose mothers received pindolol, fetal and neonatal bradycardia and hypoglycemia have been associated with the use of other nonselective beta-blockers. Most experts recommend monitoring the neonate for signs and symptoms of beta-blockade during the first 48 hours postpartum.

Pindolol Breastfeeding Warnings

Pindolol is excreted 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.

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