Rhinitis sicca. Contains benzalkonium Cl as preservative, must not be used in known hypersensitivity to this substance. Potential increasing BP in patients treated w/ MAOIs, increased IOP especially narrow-angle glaucoma, severe CV disease (eg, CHD, HTN), phaeochromocytoma, metabolic disorders (eg, hyperthyroidism, DM, porphyria), hyperplasia of the prostate.