1. The time-course of the ocular effects of topical verapamil and nifedipine as well as the dose-response relationship, were studied in conscious, normotensive rabbits. 2. Both drugs caused a dose-dependent fall of intraocular pressure, which lasted 4 hr or more. 3. Log dose-response curves of both drugs show a similar peak response, but the potency of verapamil was greater than that of nifedipine. 4. A fall in the intraocular pressure in the untreated eye was also observed. 5. Verapamil and nifedipine induced a reduction of the tonographic outflow facility in the treated eye. © 1993.
Segarra, J., Santafé, J., Garrido, M., & de Ibarreta, M. J. M. (1993). The topical application of verapamil and nifedipine lowers intraocular pressure in conscious rabbits. General Pharmacology, 24(5), 1163–1171. https://doi.org/10.1016/0306-3623(93)90364-4