Most common bromocriptine side effects include nausea, dizziness, constipation, drowsiness, loss of appetite, and diarrhea. Inform a doctor immediately if you have any symptoms of back pain, depression or mood changes, trouble sleeping, or swelling in the ankles or feet. Serious allergic reactions have been reported in patients and need to be discussed before making the choice to buy generic bromocriptine mesylate online. Seek immediate medical attention if symptoms of persistent headache, seizures, vision problems, or weakness to one side of the body occur. Removing yourself completely from this medication can cause withdrawals, so it is best to speak with a doctor about stepping down off the medication. In patients with Parkinson's disease, high doses of medication have been associated with confusion.