Can cause physical or psychological dependence
withdrawal syndrome
impairs psychomotor performance
more accident -prone
aggression (especially in combination with alcohol) sedation
sinus tachycardia
postural hypotension
dry mouth
weight loss or gain
constipation
urinary hesitancy or retention impotence
blurring of vision
exacerbation of glaucoma
liver dysfunction
eosinophilia
leucopaenia and tremor.