Multisystem Adverse Effects of Isotretinoin: Mechanistic Insights and Clinical Implications

January 2026 in “ International Journal of Innovative Technologies in Social Science ”

Marcin Chwalczuk, Klaudia Leszto, Franciszek Szweda, Tomasz Poczwardowski, Adrianna Kaczmarek, Olivia Grygorcewicz, Marta Koneczna, Katarzyna Anna Kowalska, Jakub Tomasz Latos, Karolina Alicja Krystyniak, Kinga Augustyniak

isotretinoin retinoic acid retinoid X receptors cheilitis xerosis hepatic enzyme elevations dyslipidemia musculoskeletal effects ocular effects neuropsychiatric effects subclinical hypothyroidism teratogenicity Accutane dry skin chapped lips liver enzyme changes cholesterol changes birth defects

Studysummary This review synthesizes information on isotretinoin’s systemic toxicity, emphasizing that its adverse effects, including mucocutaneous, hepatic, and musculoskeletal reactions, primarily reflect its pharmacodynamic actions and are generally manageable with individualized dosing and monitoring, though its teratogenicity remains a significant safety concern. Our plain-language summary of this paper — not a Tressless recommendation.

Isotretinoin is an effective treatment for severe acne but can cause adverse effects across multiple systems. Common side effects include mucocutaneous reactions like cheilitis and xerosis due to sebaceous gland suppression. Hepatic enzyme elevations and dyslipidemia are dose-dependent but reversible, requiring regular lab checks. Musculoskeletal, ocular, and neuropsychiatric effects are rare and mild, though psychiatric monitoring is advised for at-risk individuals. Gastrointestinal and endocrine issues, such as subclinical hypothyroidism, are reported but not strongly linked to isotretinoin. Hematologic and renal changes are minor and temporary. The most significant risk is teratogenicity, necessitating strict contraceptive measures. Overall, isotretinoin's side effects are manageable with personalized dosing and monitoring, and understanding these mechanisms is crucial for safe and effective treatment.

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