Drug-induced pigmentation is the correct answer. There are many drugs which, when directly deposited in the skin, can cause pigmentary changes. Hydroxychoroquine, chloroquine, quinidine ...

Certain medications, including chemotherapy agents, and antibiotics, can trigger pigmentation problems as a side effect. Known as drug-induced pigmentation, this problem is temporally associated ...

Induced by UV radiation ... avoid lightening the surrounding normal skin pigmentation. All medications should be reviewed with your doctor. Some drugs that worsen melasma include oral ...

Drug-induced lupus is more common in men because they are given these drugs more often; however, not everyone who takes these drugs will develop the disease. Specific criteria for diagnosing ...

Increased pigmentation is usual ... sunburn is likely to exacerbate any radiation-induced erythema reaction. A few drugs are also capable of increasing erythema linked to radiation exposure; this is ...