Cabergoline oral tablet can cause drowsiness as well as other side effects. Nausea, vomiting, stomach upset, constipation, dizziness, lightheadedness, or tiredness may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using…