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:
Constipation; dizziness; drowsiness; dry mouth; flushing; headache; increased sweating; increased urination; loss of appetite; nausea; nervousness; restlessness; ringing in the ears; stomach pain; taste changes; trouble sleeping; vomiting; weakness; weight changes.
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); chest pain; confusion; dark urine; delusions; fainting; fast or irregular heartbeat; fever, chills, or sore throat; hallucinations; hearing problems or ringing in the ears; menstrual changes; muscle pain; new or worsening mental or mood changes (eg, concentration problems, depression, panic attacks, aggressiveness, agitation, anxiety, impulsiveness, irritability, hostility, exaggerated feeling of well-being, inability to sit still); red, swollen, blistered, or peeling skin; seizures; severe headache or dizziness; severe or persistent joint or muscle pain; severe or persistent nausea, vomiting, or stomach pain; severe or persistent nervousness, restlessness, or trouble sleeping; shortness of breath; suicidal thoughts or attempts; tremor; unusual swelling; vision changes; 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.