Summary Safety Review - Finasteride - Assessing the Potential Risk of Serious Muscle-Related Side Effects

June 22, 2017

Product

Finasteride (Propecia, Proscar and generic products)

Potential Safety Issue

Serious muscle-related side effects

Key Messages

Overview

Health Canada reviewed the risk of potential serious muscle-related side effects with finasteride use because of reports in which these events were seen in patients treated with Propecia and Proscar. The safety review focussed on potential risks of serious muscle-related adverse events such as rhabdomyolysis (pain in muscles with breakdown of muscle tissue and an increase in certain muscle proteins known as creatine kinase [CK] enzymes, myopathy (disease of muscles with pain and an increase in CK enzymes) and muscle disorders such as pain, weakness, atrophy (wasting) or stiffness.

Use in Canada

Safety Review Findings

Conclusions and Actions

Additional Information

The analysis that contributed to this safety review included scientific and medical literature, Canadian and international information and what is known about the use of this drug both in Canada and internationally.

For additional information, contact the Marketed Health Products Directorate.

Page details

2017-06-22