How do olopatadine and ketotifen drops compare in the treatment of allergic conjunctivitis?
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Olopatadine (Patanol(R)) and ketotifen (Zaditor(R)) have comparable efficacy and tolerability in relieving symptoms of seasonal allergic conjunctivitis (SOR B, based on small, heterogeneous randomized controlled trials), but ketotifen is available without a prescription and is less expensive.
Evidence-based practice 11, no. 06 (2008): 08