From the digestive system: constipation, diarrhea, dryness of the oral mucosa, pharyngitis.
From the nervous system: headache, drowsiness, insomnia, aggressiveness, anxiety, nervousness, cerebral ischemia, convulsions, dizziness.
From the skin: rash, hives.
Other: pain in the injection site, frequency of urination.
Allergic reactions.
Perhaps the appearance of nausea (mainly as a consequence of dopaminergic activation), in this case, reduce the dose of the drug.