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SIDE EFFECTS: See also Warning section.Nausea, vomiting, or diarrhea may occur. If any of these effects persist or worsen, tell 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 this unlikely but serious side effect occurs: heartburn.Tell your doctor immediately if any of these rare but very serious side effects occur: joint pain/swelling, yellowing eyes/skin, dark urine, change in the amount of urine.Use of this medication for prolonged or repeated periods may result in oral thrush or a new vaginal yeast infection. Contact your doctor if you notice white patches in your mouth, a change in vaginal discharge, or other new symptoms.A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: 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.

PRECAUTIONS: Before taking clindamycin, tell your doctor or pharmacist if you are allergic to it; or to lincomycin; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.This medication should not be used if you have a certain medical condition. Before using this medicine, consult your doctor or pharmacist if you have: a certain intestinal condition (Clostridium difficile-associated diarrhea).Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease, kidney disease, other stomach/intestinal diseases (e.g., colitis), allergic conditions (e.g., asthma, hay fever, eczema).Before having surgery, tell your doctor or dentist that you are using this medication (unless your doctor/dentist has directed you to take this drug before surgery as a precaution).Older adults may be more sensitive to the effects of this drug, especially persistent diarrhea.During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.This medication passes into breast milk. Though there have been no reports of harm to nursing infants, consult your doctor before breast-feeding.

Report Problems to the Food and Drug Administration   You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088. Need help identifying pills and medications? Use the pill identifier tool on RxList.