All medicines may cause side effects, but many people have no, or minor, side effects.
Check with your doctor if any of these most common side effects persist or become bothersome:
Dizziness; drowsiness; headache; nausea; vomiting.
Seek medical attention right away if any of these severe side effects occur:
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); abnormal thinking; chest pain; confusion; fainting; fast, slow, or irregular heartbeat; fever, chills, sore throat; increased sweating; involuntary movements of the tongue, face, mouth, jaw, arms, legs, or back (eg, chewing movements, puckering of mouth, puffing of cheeks); loss of control over urination; loss of coordination; muscle tremor, jerking, or stiffness; one-sided weakness; seizures; severe or persistent restlessness; shortness of breath; swelling of the hands, ankles, or feet; symptoms of high blood sugar (eg, increased thirst, urination, or appetite; unusual weakness); trouble swallowing; trouble walking; unusual bruising; unusual tiredness or weakness; vision or speech changes.
This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider.