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Systematic review identifies specific medications significantly associated with drug-induced hyperpigmentation across diverse drug classes.

Systematic review identifies specific medications significantly associated with drug-induced hyperpi…
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Key Takeaway
Recognize tyrosine kinase inhibitors and MC4R agonists as high-risk medications significantly associated with drug-induced hyperpigmentation.

This systematic review and meta-analysis examined the incidence of drug-induced hyperpigmentation (DIH) across a collection of twenty-two studies. The investigation focused on identifying which medications were significantly associated with this cutaneous adverse event, covering a range of therapeutic agents including tyrosine kinase inhibitors, MC4R agonists, antibiotics, and antineoplastic agents. The primary outcome measured was the overall pooled incidence of DIH, with stratification provided for specific drug classes to highlight varying risks.

The analysis revealed that tyrosine kinase inhibitors were associated with the highest incidence of hyperpigmentation, followed by MC4R agonists, antibiotics, antineoplastic agents, and antimalarials. The authors observed that the overall pooled incidence was substantial, though specific absolute numbers for individual cases were not reported in the source data. These findings underscore the importance of monitoring patients receiving these specific therapies for potential skin discoloration.

The authors note that the certainty of the evidence was not explicitly reported in the available data. Furthermore, the review does not provide details on discontinuations or serious adverse events related to the skin changes. Clinicians should interpret these associations as significant links rather than definitive proof of causality for every individual case. The practice relevance lies in recognizing high-risk medications to ensure prompt diagnosis and appropriate clinical management of DIH.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedApr 2026
View Original Abstract ↓
Drug-induced hyperpigmentation (DIH) represents a significant subset of acquired pigmentation disorders and poses diagnostic challenges due to delayed onset and polypharmacy. This systematic review and meta-analysis aimed to identify medications significantly associated with DIH and evaluate their reported incidence. A systematic search was conducted across PubMed, Scopus, Web of Science, and Cochrane Library for studies published between 2002 and June 2024. Eligible studies reported DIH as an outcome with incidence or descriptive data. Pooled proportions were calculated using a random-effects model, and heterogeneity was assessed via the I2 statistic. Twenty-two studies met the inclusion criteria. The overall pooled incidence of DIH was 36.7% (95% CI: 0.291–0.444). Subgroup analyses revealed the highest incidences with tyrosine kinase inhibitors (89.2%) and MC4R agonists (71.4%), followed by antibiotics (52.0%), antineoplastic agents (35.5%), and antimalarials (29.0%). Commonly implicated agents included minocycline, hydroxychloroquine, and hydroxyurea. DIH is a prevalent adverse drug reaction with considerable variation in incidence across drug classes. Recognition of high-risk medications is essential for prompt diagnosis and clinical management. The study protocol was pre-registered in the International Prospective Register of Systematic Reviews (PROSPERO: CRD42024529250).
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