Skin redness, dryness, peeling, mild burning, swelling, or worsening of acne may occur during the first 4 weeks of using this product. These effects usually decrease with continued use. If any of these effects last or get worse, notify your doctor or pharmacist promptly. Your doctor may want you to use a moisturizer, decrease how often you use the product, or have you stop using it. Remember that this medication has been prescribed because your doctor 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. A very serious allergic reaction to this drug is rare. However, get medical help right away 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.

Some products that may interact with this drug include: other acne skin treatments (such as tretinoin, dapsone). Avoid using other skin products that are harsh, irritating, or drying on the treated area. These products include hair perming solutions, alcohol/lime/menthol-containing products (such as astringents, toners, shaving lotion), medicated or abrasive soaps or cleansers, soaps and cosmetics with a strong drying effect (such as alpha hydroxy acids, glycolic acid), and products containing sulfur, resorcinol, salicylic acid. If you have recently used products containing sulfur, resorcinol or salicylic acid, use this product with caution. Wait until the effects of such products on the skin have decreased before using this product.