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:
Acne; constipation; dizziness; drowsiness; dry mouth; headache; indigestion; nausea; stomach pain; tiredness; tremor; trouble sleeping; unusual walk; 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; unusual hoarseness); blood in stool; chest pain; dark urine; decreased urination; difficulty speaking; double vision, changes in vision, or involuntary eye movement; dulled sense of touch; fever, chills, or sore throat; joint pain; loss of coordination; low sodium levels (nausea; general body discomfort; headache; lack of energy; confusion; decreased consciousness; increased frequency or severity of seizures); mental/mood changes; nosebleed; red, swollen, blistered, or peeling skin; seizures; stomach pain; suicidal thoughts or actions; swollen lymph nodes; trouble walking; uncontrolled muscle movements; unusual bruising or bleeding; unusual weakness; yellowing of the skin or eyes.
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.