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Tendon rupture associated with simvastatin/ezetimibe therapy.

Raja C Pullatt¹, Mamatha Reddy Gadarla, Richard H Karas

¹Department of Internal Medicine, University of Connecticut, Farmington, Connecticut, USA.

The American Journal of Cardiology

|June 30, 2007

Summary

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Simvastatin and ezetimibe (Vytorin) may increase the risk of tendon rupture. These cholesterol drugs might alter matrix metalloproteinase activity, hindering tendon repair and increasing injury likelihood.

Area of Science:

Pharmacology
Biochemistry
Orthopedic Surgery

Background:

Tendon rupture is often associated with pre-existing tendon injuries.
Physiological tendon repair involves extracellular matrix remodeling mediated by matrix metalloproteinases (MMPs).

Observation:

A physician experienced spontaneous biceps tendon rupture while taking simvastatin and ezetimibe.
Re-administration of the medication led to tendinopathy in the opposite biceps tendon, which resolved upon discontinuation.

Findings:

Statins are known to inhibit MMPs.
This inhibition may disrupt the natural degradation and remodeling processes essential for tendon healing.
Altered MMP activity due to statin use is hypothesized to increase the risk of tendon rupture.

Related Experiment Videos

Implications:

Clinicians should consider the potential risk of tendon rupture in patients using statins, particularly those with a history of tendon injury.
Further research is warranted to elucidate the precise mechanisms by which statins affect tendon integrity.
This case highlights a potential adverse drug reaction associated with combination statin-ezetimibe therapy.