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toxic myopathy; drug-induced myopathy
Etiology:
- statins, see statin myopathy
- ethanol
- interferons
- antiretroviral agents
- zidovudine [1]
- antimalarials [1]
- cocaine (can occur after single use) [1]
- colchicine (usually after months-years) [1]
- glucocorticoids (long-term use) [1]
Clinical manifestations:
- muscle tenderness
Differential diagnosis:
- muscle tenderness distinguishes from inflammatory myopathy*
* polymyositis, dermatomyositis, inclusion body myositis, immune-mediated necrotizing myopathy
Specific
statin myopathy
General
muscular disease; myopathy
References
- Medical Knowledge Self Assessment Program (MKSAP) 17, 18, 19.
American College of Physicians, Philadelphia 2015, 2018, 2022.
- Pasnoor M, Barohn RJ, Dimachkie MM.
Toxic myopathies.
Curr Opin Neurol. 2018;31:575-82.
PMID: 30080718