• Clindamycin is a recently developed, semisynthetic antibiotic whose spectrum of activity suggests a potential for the treatment of common ocular infections. The uptake by various ocular tissues and serum in albino rabbits after topical administration of 0.2% clindamycin hydrochloride was studied. Therapeutic levels were achieved in the cornea, aqueous humor, and iris-ciliary body and persisted for two hours. Peak concentration occurred in the cornea within 15 minutes and in the aqueous humor and the irisciliary body at 30 minutes. Freezing of the tissue reduced active clindamycin levels in the cornea by a factor of 2 to 2½ of those determined by fresh tissue analysis but had no apparent effect on aqueous humor and iris-ciliary body. There were, however, no detectable levels in the serum or vitreous humor.
Mercer KB, DeOlden JE, Leopold IH. Intraocular Penetration of Topical Clindamycin in Rabbits. Arch Ophthalmol. 1978;96(5):880–884. doi:10.1001/archopht.1978.03910050482019
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