rxstat › Classes › Other Systemic Drugs For Obstructive Airway Diseases
Other Systemic Drugs For Obstructive Airway Diseases: shortage status in Canada
4 of the 7 other systemic drugs for obstructive airway diseases 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 shortageAminophylline2 of 3 reported products affected · est. return Aug 31, 2026Widespread shortageOxtriphylline3 of 4 reported products affectedPartial shortageMontelukast8 of 44 reported products affected · est. return Jun 30, 2027Partial shortageTheophylline1 of 7 reported products affectedDiscontinuedGuaifenesin Oxtriphylline0 of 1 reported products affectedNo current shortageRoflumilastDiscontinuedZafirlukast0 of 1 reported products affected
Class groupings follow the WHO ATC classification in Health Canada's reports. Data reflects manufacturer mandatory filings; see methodology.