Side Effects of Bromocriptine Therapy Side effects of bromocriptine therapy occur only at the start of treatment and disappear with continued therapy. There are no long-term problems associated with chronic treatment at the doses used for hyperprolactinaemia-usually 7.5mg/d, and rarely more than 15mg/d. If treatment is started with full doses or increased too quickly dizziness, nausea, and postural hypotension may occur. To avoid such effects, bromocriptine must always be taken during a meal. Administration should be started at night, with a sandwich and glass of milk, when the patient retires to bed.