Safety And Tolerability Of Naproxen Ophthalmic Solution In Comparison To Placebo
INTERNATIONAL JOURNAL OF CLINICAL PHARMACOLOGY AND THERAPEUTICS(1999)
Abstract
Background: Naproxen isa classic non-steroidal anti-inflammatory drug (NSAID) with established analgesic and antiinflammatory potency. Its action is related to cyclooxygenase inhibition and consequent decrease in prostaglandin concentration in various fluids and tissues. Since prostaglandin release is involved in several ocular alterations, various NSAID eye drops have come into use in the clinical setting during the last decade. Subjects, material and methods: A randomized, double-blind, placebo-controlled, three-way crossover design phase I was performed in 12 healthy volunteers to determine both tolerance and safety of a new NSAID ophthalmic solution containing sodium naproxen (0.1% and 0.2%). Both single dose and repeated dose (TID for 6 days) instillation were performed. Evaluation was entirely based upon tolerance criteria. Subjective and objective signs of ocular irritation and subject comfort preference were evaluated. Also medical examination, hematology, blood chemistry and urine analysis were also assessed to evaluate any possible effect of the test drugs and control. Results: Neither ophthalmic tolerance parameters nor vital signs or laboratory parameters were influenced by treatments. A slight hyperemia of the conjunctiva was the only change observed in the eye during the study, whereas the only symptom mentioned was burning. Conclusion: It is concluded that both tolerability and safety of 0.1% and 0.2% naproxen solution are acceptable after single and repeated conjunctival administration.
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Key words
naproxen, tolerability, ophthalmic solution, NSAID
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