Glaucoma, prostate hypertrophy, hyperthyroid, heart disease, DM. Discontinue treatment if insomnia, palpitation or dizziness occurs. Patients w/ hypertensive drugs, TCA, or other sympathomimetic drugs eg, decongestants, appetite suppressants, psychostimulants, amphetamine. May impair the ability to drive the vehicle or operate the machinery. Patients w/ impaired liver & kidney function. Pregnancy & lactation. Not recommended for childn <2 yr.