Answer
Women prone to chloasma should avoid sunlight and ultraviolet radiation while taking Dimetrum (dienogest) because chloasma may occasionally occur, especially in women with a history of chloasma gravidarum.
Sources for this answer
- Dimetrum 2 mg TabletsBesins Healthcare (UK) Ltd · emc · SmPC §4.4 Special warnings and precautions for use · Version 4Document updated
Sources checked