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|Title||Topical delta 9-tetrahydrocannabinol and aqueous dynamics in glaucoma.|
|Author(s)||Merritt JC, Perry DD, Russell DN, Jones BF|
|Journal, Volume, Issue||Journal of Clinical Pharmacololgy 1981;21(8-9 Suppl):467S-471S|
|Major outcome(s)||no effect|
Systemic delta 9-tetrahydrocannabinol (THC), administered either by smoking marihuana or as synthetic THC in soft gelatin capsules, lowers ocular tension in various glaucomas, but at the expense of significant decreases in systolic blood pressure. Topical THC in light mineral oil vehicles, though effective in laboratory animals, was not shown effective in 0.05 and 0.1% topical solutions when administered to six subjects with primary open-angle glaucoma in a randomized, balanced, double-masked protocol. Light mineral oil, which has an affinity for corneal epithelium, is an optimum vehicle for administering drugs whose mechanisms of action are systemic rather than local within the eye. Further glaucoma research should therefore proceed with marihuanas containing insignificant levels of THC (less than 0.4%) and with various local delivery systems of the ocular-active cannabinoid found in Cannabis sativa.
|Dose(s)||0.05 and 0.1% THC in light mineral oil|
|Participants||6 patients with glaucoma|
|Type of publication|
|Address of author(s)|