The topical application of verapamil and nifedipine lowers intraocular pressure in conscious rabbits

  • Segarra J
  • Santafé J
  • Garrido M
 et al. 
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Abstract

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.

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Authors

  • José Segarra

  • Juan Santafé

  • Manuel Garrido

  • María Jesús Martínez de Ibarreta

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