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Comparison of propranolol concentrations in the periocular tissues and plasma at 1 h after topical (1.5 mg dose), intravenous (1.5 mg dose), and oral (5 mg dose) administration of propranolol. The data represent the average propranolol concentrations in the treated eye after topical application and in both eyes after systemic administration (mean±SD, n=3 −8). Missing bar indicates that the drug was not detectable in the bulbar conjunctiva at 1 h after oral administration.
