Most of the drugs in this group are preparations for topical use. Some few preparations for systemic use with clear dermatological applications, e.g. griseofulvin (antimycotic), retinoids (for treatment of acne) and psoralens and retinoids (for treatment of psoriasis) are classified in this group.

This group comprises various dermatological preparations, which cannot be classified in the preceding groups.
Insect repellents are classified in P03B - Insecticides and repellents.