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Antiarrhythmics, Class I And Iii: shortage status in Canada

4 of the 8 antiarrhythmics, class i and iii rxstat tracks are currently in shortage in Canada, including 1 designated Tier 3 (most serious) by Health Canada. When one drug in a class is short, demand often shifts to its alternatives, so related drugs can tighten too; each page below shows which manufacturers are affected and the latest recovery estimates.

Widespread shortageDisopyramide1 of 1 reported products affected Widespread shortageProcainamide4 of 5 reported products affected Partial shortageFlecainide1 of 8 reported products affected · est. return Jul 17, 2026 Partial shortageLidocaine2 of 22 reported products affected No current shortageAmiodarone DiscontinuedBretylium Tosylate0 of 1 reported products affected No current shortageMexiletine No current shortagePropafenone

Guides: what to do when your medication is in shortage · how to read these statuses

Class groupings follow the WHO ATC classification in Health Canada's reports. Data reflects manufacturer mandatory filings; see methodology.