Levamisole-Adulterated Cocaine-Induced Mucous Membrane Pemphigoid: Case Reports and Literature Review.

Given the rising abuse of cocaine, it is important that ophthalmologists are made aware of its association with severe atypical cicatricial conjunctivitis. To the best of our knowledge, we present the first case proving the causal relationship between levamisole and ocular cicatricial pemphigoid.