Merck reports anticipated drug shortage

Parkinson Canada is aware of current status of actual and anticipated the Sinemet® shortages.

We are in close contact with the manufacturer (Merck) to keep up-to-date on the real and possible impact to the supply. Merck Canada informs Drug Shortages Canada any possible supply constraints related to four Sinemet® products. Visit for current information.

Who may be affected?

In Canada, generic alternatives are approved and available. the majority of patients who use levodopa-carbidopa receive the generic formulation. Only a minor percentage may be affected by this possible shortage of the name-brand drug (Sinemet®), i.e. those who opt to take Sinemet® in consultation with their prescriber.

What should you do?

If you currently use Sinemet®, contact your neurologist to discuss your treatment options.

Remember, if you have any questions about living well with Parkinson’s, contact our Information and Referral team any time at or call 1 (800) 565-3000.