Dizziness, lightheadedness, headache, tiredness, or dry cough may occur as your body adjusts to the medication. You may also experience decreased sexual ability. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Tell your doctor immediately if any of these unlikely but serious side effects occur: symptoms of a high potassium blood level (such as muscle weakness, slow/irregular heartbeat), fast heartbeat, fainting, signs of infection (e.g., fever, chills, persistent sore throat), numbness/tingling/swelling of the hands/feet, chest pain.This drug may rarely cause serious (possibly fatal) liver problems. Seek immediate medical attention if you notice any of the following rare but very serious side effects: yellowing eyes/skin, dark urine, severe stomach/abdominal pain, persistent tiredness, persistent nausea/vomiting.Seek immediate medical attention if this rare but very serious side effect occurs: unusual change in the amount of urine.A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.