Do not exceed recommended dosage. Persistent cough for >10 days, recurrent or accompanied w/ fever, rash or persistent headache. Chronic cough associated w/ smoking or chronic lung disease eg, asthma or emphysema; high BP, heart disease, diabetes or thyroid disease; difficulty in urination due to prostate gland enlargement; recently taking antihypertensives or sympathomimetics. In case of accidental overdose, discontinue use & seek professional help immediately. Pregnancy & lactation.