CLARINASE REPETABS Tablets are contraindicated in patients who have shown hypersensitivity or idiosyncrasy to their components, to adrenergic agents or to other drugs of similar chemical structure. CLARINASE REPETABS Tablets are also contraindicated in patients receiving MAO therapy or within fourteen days of discontinuing such treatment and in patients with narrow angle glaucoma, urinary retention, severe hypertension, severe coronary artery disease and hyperthyroidism.