Brimonidine Tartrate And Timolol Maleate

Contraindications

4 CONTRAINDICATIONS Bronchial asthma, a history of bronchial asthma, severe chronic obstructive pulmonary disease. (4.1, 5.1, 5.3) Sinus bradycardia, atrioventricular block, overt cardiac failure, cardiogenic shock. (4.2, 5.2) Neonates and infants (under the age of 2 years). (4.3) Hype sensitivity to any component of this product. (4.4) 4.1 Reactive Airway Disease Including Asthma, COPD Brimonidine tartrate/timolol maleate ophthalmic solution is contraindicated in patients with reactive airway disease including bronchial asthma; a history of bronchial asthma; severe chronic obstructive pulmonary disease [see Warnings and Precautions (5.1, 5.3)] . 4.2 Sinus Bradycardia, AV Block, Cardiac Failure, Cardiogenic Shock Brimonidine tartrate/timolol maleate ophthalmic solution is contraindicated in patients with sinus bradycardia; second or third degree atrioventricular block; overt cardiac failure [see Warnings and Precautions (5.2)] ; cardiogenic shock. 4.3 Neonates and Infants (Under the Age of 2 Years) Brimonidine tartrate/timolol maleate ophthalmic solution is contraindicated in neonates and infants (under the age of 2 years). 4.4 Hypersensitivity Reactions Local hypersensitivity reactions have occurred following the use of different components of brimonidine tartrate/timolol maleate ophthalmic solution. Brimonidine tartrate/timolol maleate ophthalmic solution is contraindicated in patients who have exhibited a hypersensitivity reaction to any component of this medication in the past.

Pregnancy & Breastfeeding

8.1 Pregnancy 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 580 and 37-fold higher, respectively, than similar values estimated in humans treated with brimonidine tartrate/timolol maleate ophthalmic solution , 1 drop in both eyes twice daily. Teratogenicity studies with timolol in mice, rats, and rabbits at oral doses up to 50 mg/kg/day [4,200 times the maximum recommended human ocular dose of 0.012 mg/kg/day on a mg/kg basis (MRHOD)] demonstrated no evidence of fetal malformations. Although delayed fetal ossification was observed at this dose in rats, there were no adverse effects on postnatal development of offspring. Doses of 1,000 mg/kg/day (83,000 times the MRHOD) were maternotoxic in mice and resulted in an increased number of fetal resorptions. Increased fetal resorptions were also seen in rabbits at doses 8,300 times the MRHOD without apparent maternotoxicity. 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/timolol maleate ophthalmic solution should be used during pregnancy only if the potential benefit to the mother justifies the potential risk to the fetus.