-medicines or other preparations that may dry your skin such as benzoyl peroxide or salicylic acid
-medicines that increase your sensitivity to sunlight such as tetracycline or sulfa drugs

They need to know if you have any of these conditions:
-eczema
-excessive sensitivity to the sun
-sunburn
-an unusual or allergic reaction to tretinoin, vitamin A, other medicines, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

Your acne may get worse initially and should then start to improve. It may take 2 to 12 weeks before you see the full effect.

Do not wash your face more than 2 or 3 times a day, unless directed by your doctor or health care professional. Do not use the following products on the same areas that you are treating with this medicine, unless otherwise directed by your doctor or health care professional: other topical agents with a strong skin drying effect such as products with a high alcohol content, astringents, spices, the peel of lime or other citrus, medicated soaps or shampoos, permanent wave solutions, electrolysis, hair removers or waxes, or any other preparations or processes that might dry or irritate your skin.

This medicine can make you more sensitive to the sun. Keep out of the sun. If you cannot avoid being in the sun, wear protective clothing and use sunscreen. Do not use sun lamps or tanning beds/booths. Avoid cold weather and wind as much as possible, and use clothing to protect you from the weather. Skin treated with this medicine may dry out or get wind burned more easily.

Keep out of the reach of children.

Store below 27 degrees C (80 degrees F). Do not freeze. Protect from light. Throw away any unused medicine after the expiration date.