ADVERSE REACTIONS
The following adverse reactions have been observed, but there are not enough data to support an estimate of their frequency.
Cardiovascular System:
ventricular arrhythmia
atrial fibrillation
ectopic beats
tachycardia
anginal pain
palpitation
cardiac conduction abnormalities
widened QRS complex
bradycardia
hypotension
hypertension
vasoconstriction
Respiratory System:
dyspnea
Gastrointestinal System:
nausea
vomiting
Metabolic/Nutritional System:
azotemia
Central Nervous System:
headache
anxiety
Dermatological System:
piloerection
Other:
Gangrene of the extremities has occurred when high doses were administered for prolonged periods or in patients with occlusive vascular disease receiving low doses of dopamine HCl.