Brimonidine Tartrate Interactions

Pregnancy & Breastfeeding

8.1 Pregnancy Pregnancy Category B: Teratogenicity studies have been performed in animals. Brimonidine tartrate was not teratogenic when given orally during gestation days 6 through 15 in rats and days 6 through 18 in rabbits. The highest doses of brimonidine tartrate in rats (2.5 mg/kg/day) and rabbits (5 mg/kg/day) achieved AUC exposure values 375-fold higher or 19-fold higher, respectively, than similar values estimated in humans treated with Brimonidine Tartrate Ophthalmic Solution, 0.2%, one drop in one eye, twice daily. There are no adequate and well-controlled studies in pregnant women; however, in animal studies, brimonidine crossed the placenta and entered into the fetal circulation to a limited extent. Because animal reproduction studies are not always predictive of human response, brimonidine tartrate ophthalmic solution, 0.2% should be used during pregnancy only if the potential benefit to the mother justifies the potential risk to the fetus.