Medicines information

The information in this section describes medicines, how they are given and some of their possible side effects.

If you have any questions or concerns about medications, please ask your doctor, nurse or pharmacist.

Medicines search

Search for information on medicines at Great Ormond Street Hospital.

Types of medicines

Most medicines come in a variety of types or formats. Be aware, though, that some medicines (particularly rare or unusual ones) only come in one type. Also, some may be more effective in one type than another.

Isotretinoin

Isotretinoin is a retinoid, which is a type of Vitamin A. It is commonly used for the treatment of severe acne. Retinoids are thought to influence the way in which cells grow and develop, and prevent the production of specific genes that may cause cancer.This page from Great Ormond Street Hospital (GOSH) explains what isotretinoin is, how it is given and some of the possible side effects.