In taking this medication Stomach upset, nausea, vomiting, loss of appetite, headache, dizziness, or unusual tiredness may occur. However, if the effects persist or worsen, contact your doctor right away.
This medication may cause your skin and urine turn into a yellow-orange tinge. This effect is harmless and will disappear once you have stopped taking the medication. Also it may cause temporary male infertility. This effect is reversible when the medication is done.
Tell your doctor right away if you have any serious side effects, including: hearing changes (e.g., ringing in the ears), mental/mood changes, signs of kidney problems (such as change in the amount of urine, painful urination, blood in the urine), new lump/growth in the neck (goiter), numbness/tingling of the hands/feet, signs of low blood sugar (e.g., hunger, cold sweat, blurred vision, weakness, fast heartbeat).
This medication may rarely cause very serious allergic reactions (e.g., Stevens-Johnson syndrome), blood disorders (e.g., agranulocytosis, aplastic anemia), liver damage, nerve/muscle problems and infections. Get medical help right away if you have any very serious side effects, including: skin rash/blisters/peeling, mouth sores, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing, chest pain, signs of infection (such as fever, chills, persistent sore throat, cough), swollen lymph nodes, easy bruising/bleeding, severe tiredness, muscle pain/weakness (especially with fever and unusual tiredness), pale or blue skin/lips/nails, new/worsening joint pain, confusion, persistent/severe headache, unexplained neck stiffness, seizures, signs of liver problems (e.g., persistent nausea/vomiting, severe stomach/abdominal pain, yellowing eyes/skin, dark urine).