Abstract
Three groups of glaucoma patients, treated topically with various beta-blocking agents, were studied for mucocutaneous side-effects of long-term therapy. In five of eleven patients with ocular and/or periocular dermatitis as an adverse reaction to long-term treatment with metoprolol eye drops a dermatitis, reproducible by patch tests with pure metoprolol 3%, was demonstrable. Histopathological examination of positive patch tests examined in three cases showed a picture compatible with a delayed type of hypersensitivity. Four atenolol treated patients showed adverse reactions, but negative patch tests to atenolol were found. In addition new data are reported in favour of cross-reactivity between certain beta-blocking agents.
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