Statins everyday versus alternate days: Is there a difference in myalgia rates?

Statins are widely used drugs, known to cause myalgia, leading to high discontinuation rates. The objective of our study was to determine the frequency of myalgia in patients on everyday-dose (EDD) regimen with those on alternate-day dose (ADD) regimen. This cross sectional study was conducted in a...

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Bibliographic Details
Published in:Indian heart journal 2018-07, Vol.70 (4), p.492-496
Main Authors: Riaz, Ramsha, Merchant, Aleena Zehra, Ul Haq, Muhammad Salman, Nasir, Syed Ali Raza, Rizvi, Yusra, Khan, Jehanzeb Ahmed, Zakaria, Sara Mohiuddin, Jawed, Hassaan, Hamid, Khizar, Zehra, Noor-ul-ain, Ahmed, Madiha, Ali, Hussain Asif, Fatima, Kaneez
Format: Article
Language:English
Subjects:
Alternate-day dosage
Clinical and Preventive Cardiology
Everyday dosage
Myalgia
Simvastatin
Statin
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Summary:Statins are widely used drugs, known to cause myalgia, leading to high discontinuation rates. The objective of our study was to determine the frequency of myalgia in patients on everyday-dose (EDD) regimen with those on alternate-day dose (ADD) regimen. This cross sectional study was conducted in a tertiary care hospital of Pakistan. A sample size of 400 patients between the age of 40–70 years, taking simvastatin 40mg for at least 6 months or more were selected. Patients with prior musculoskeletal or neuromuscular complains, and family history of muscular disorders were excluded. Subjects were evaluated for myalgia via a self-administered questionnaire, and those complaining of myalgia were then evaluated for serum vitamin D levels. Data was analyzed through SPSS 16.0 and compared using chi square test. The overall prevalence of myalgia was 7% (28/400). Frequency of myalgia in patients taking simvastatin everyday (n=20, 10%) was significantly higher compared to those taking it every alternate day (n=8, 4%) (p=0.02). There was no significant difference between the time of onset, nature, severity, type, or location of myalgia between the 2 groups. The most common cited triggering factor for pain was physical exercise. Of the patients experiencing myalgia, 13 (6.5%) from the EDD group and 6 (3%) from the ADD group had low levels of vitamin D. ADD regime was better tolerated by the patients than EDD regime. Alternate day therapy, with or without vitamin D supplementation, may be used by the physicians for troublesome muscular complains.
ISSN:0019-4832
DOI:10.1016/j.ihj.2017.10.018