SIDE EFFECTS: Skin redness, irritation, stinging, and burning at the application site may occur and lessen over time as your body adjusts to the medication. If any of these effects persist or worsen, stop using this medication and 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. Rarely, sodium sulfacetamide products applied to the skin may be absorbed and may cause serious side effects. Stop using this product and tell your doctor right away if any of these rare but serious side effects occur: aching/swollen joints, rash on nose and cheeks, signs of infection (such as fever, persistent sore throat), signs of anemia (such as unusual tiredness/weakness, rapid breathing, fast heartbeat), unusual bleeding/bruising, signs of liver problems (such as dark urine, yellowing eyes/skin, stomach/abdominal pain, persistent nausea, vomiting), mouth sores. 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 or at www.fda.gov/medwatch. 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 using sulfacetamide lotion, tell your doctor or pharmacist if you are allergic to it; or to sulfa antibiotics (such as sulfamethoxazole); or if you have any other allergies. This product may contain inactive ingredients (such as sulfites), which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history. Tell your doctor if there are areas of skin near where this product will be applied that are cut, scraped, burned, or infected. Injured skin may absorb more of this product, and the chance of serious side effects may increase. Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products). During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor. It is unknown if this drug passes into breast milk. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: The effects of some drugs can change if you take other drugs or herbal products at the same time. This can increase your risk for serious side effects or may cause your medications not to work correctly. These drug interactions are possible, but do not always occur. Your doctor or pharmacist can often prevent or manage interactions by changing how you use your medications or by close monitoring. To help your doctor and pharmacist give you the best care, be sure to tell your doctor and pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products) before starting treatment with this product. While using this product, do not start, stop, or change the dosage of any other medicines you are using without your doctor's approval. Some products that may interact with this drug include: skin products containing silver. This document does not contain all possible drug interactions. Keep a list of all the products you use. Share this list with your doctor and pharmacist to lessen your risk for serious medication problems.

OVERDOSE: This medicine may be harmful if swallowed. If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.