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Isotretinoin embryopathy is an association of malformations caused by the teratogenic effect of isotretinoin, an oral synthetic vitamin A derivative, which is used to treat severe recalcitrant cystic acne. Exposure to isotretinoin during the first trimester of pregnancy has been associated with an increased risk of spontaneous abortions and severe birth defects including serious craniofacial (microcephaly, asymmetric crying facies, microphthalmia, developmental abnormalities of the external ear, ocular hypertelorism), cardio vascular (conotruncal heart defects, aortic arch abnormalities), and central nervous system (hydrocephalus, microcephaly, lissencephaly, Dandy-Walker malformation, cognitive deficit) anomalies and thymic aplasia. Isoretinoin is contraindicated during pregnancy.
Estimated prevalence: Unknown (Unknown prevalence).
No clinical trials have been registered for isotretinoin syndrome.
6 publications have been identified in PubMed for isotretinoin syndrome. Research spans Epidemiology / Natural History (33%), Other (17%), and Review / Meta-Analysis (17%).
Muhammed Kutty S (2026). [PMID: 41762006](https://pubmed.ncbi.nlm.nih.gov/41762006/). *Indian Dermatol Online J*. [Review / Meta-Analysis]
Guerrero-Cornejo S (2025). [PMID: 41236221](https://pubmed.ncbi.nlm.nih.gov/41236221/). *Dermatol Pract Concept*. [Other]
Shiraz ZK (2025). [PMID: 40236306](https://pubmed.ncbi.nlm.nih.gov/40236306/). *Clin Case Rep*. [Case Report / Case Series]
Hashimoto AS (2025). [PMID: 40519748](https://pubmed.ncbi.nlm.nih.gov/40519748/). *Genet Med Open*. [Basic Science / Preclinical]
Wei Y (2024). [PMID: 38523015](https://pubmed.ncbi.nlm.nih.gov/38523015/). *Pediatr Neonatol*. [Epidemiology / Natural History]
Vieiros M (2024). [PMID: 38886650](https://pubmed.ncbi.nlm.nih.gov/38886650/). *BMC Genomics*. [Epidemiology / Natural History]
Data assembled from 3 of 12 sources · Last updated Sep 20, 2026, 12:57 AM UTC
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