adrenergic beta receptor non-selective antagonist drug pathway sensory organ drug pathway levobunolol drug pathway 2015-12-03T09:47:52Z PW:0002307 The pharmacokinetics and pharmacodynamics pathway of levobunolol, a non-selective beta adrenergic receptor antagonist used in the treatment of glaucoma. Genetic variations can result in changes in drug availability and can cause differences in the response of the organism to the drug. pathway vpetri