Nausea, vomiting, diarrhea, stomach pain, or dizziness may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.
Tell your doctor right away if any of these unlikely but serious side effects occur: unusual tiredness/weakness.
Tell your doctor right away if any of these rare but very serious side effects occur: yellowing of the eyes/skin, severe stomach/abdominal pain, persistent nausea/vomiting, dark urine, signs of kidney problems (such as change in the amount of urine), signs of new infection (e.g., fever, persistent sore throat), easy bruising/bleeding, mental/mood changes (such as confusion).
This medication may rarely cause a severe intestinal condition (Clostridium difficile-associated diarrhea) due to a resistant bacteria. This condition may occur while receiving therapy or even weeks to months after treatment has stopped. Do not use anti-diarrhea or opioid medications if you have the following symptoms because these products may make them worse. Tell your doctor right away if you develop: persistent diarrhea, abdominal or stomach pain/cramping, blood/mucus in your stool.
Use of this medication for prolonged or repeated periods may result in oral thrush or a new vaginal yeast infection (oral or vaginal fungal infection). Contact your doctor if you notice white patches in your mouth, a change in vaginal discharge or other new symptoms.