At doses of less than 0.2 mg/day,<unk>  has few adverse effects, the most common of which is nasal congestion.<unk>  can cause: nasal congestion, nausea, vomiting, weight gain, gastric intolerance, gastric ulceration (due to increased cholinergic activity in gastric tissue and impaired mucosal quality), stomach cramps and diarrhea. The drug causes hypotension and bradycardia and may worsen asthma. Congested nose and erectile dysfunction are other consequences of alpha-blockade. Central nervous system effects at higher doses (0.5 mg or higher) include drowsiness, dizziness, nightmares, Parkinsonism, general weakness and fatigue. High dose studies in rodents found<unk>  to cause fibroadenoma of the breast and malignant tumors of the seminal vesicles among others. Early suggestions that<unk>  causes breast cancer in women (risk approximately doubled) were not confirmed. It may also cause hyperprolactinemia.<unk>  passes into breast milk and is harmful to breast-fed infants, and should therefore be avoided during breastfeeding if possible. It may produce an excessive decline in blood pressure at doses needed for treatment of anxiety, depression, or psychosis.
Reserpine
Meptazinol
Rivastigmine
Tianeptine
Fluorodopa
Butriptyline
Promazine
Complanine