While minor, some of these side effects may occur. They are as follows; Stomach/abdominal cramping may occur, usually within the first several hours after taking this medication. Nausea, loss of appetite, heartburn, and headache may also occur. However if any of these persist or worsen, it’s best to speak with your doctor right away.
Tell your doctor right away if any of these unlikely but serious side effects occur: eye redness/pain, hair loss, numbness/tingling of arms/legs.
This medication may cause mouth/lip/throat sores (stomatitis). Tell your doctor if you notice a metallic taste in your mouth. This could be the first sign of stomatitis. Rinsing your mouth with a mild salt solution may provide some relief. Discuss with your doctor.
Tell your doctor right away if any of these rare but very serious side effects occur: signs of low blood count (e.g., fast/pounding heartbeat, pale skin, unusual tiredness), easy bleeding/bruising, black/bloody stools, persistent cough, mucus/pus/blood in watery diarrhea, difficult/painful breathing, dizziness, signs of infection (e.g., fever, persistent sore throat), severe stomach/abdominal pain, unusual tiredness, change in the amount/color of urine, vomit that looks like coffee grounds, yellowing eyes/skin.
A very serious allergic reaction to this drug is uncommon. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: itching/swelling (especially of the face/tongue/throat), rash, severe dizziness, trouble breathing.