PIPKORN, U. A double-blind evaluation of topical levocabastine, a new specific H_1 antagonist in patients with allergic conjunctivitis. Allergy. 1985, 40, 491-496
RICHARD, C. Comparison of topical 0.05% levocabastine and 0.1% lodoxamide in patients with allergic conjunctivitis. Study Group. Eur J Ophthalmol. 1998, 8, 207-216