rxstat › Classes › Antihistamines For Systemic Use
Antihistamines For Systemic Use: shortage status in Canada
5 of the 9 antihistamines for systemic use rxstat tracks are currently in shortage in 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.
Partial shortageBilastine1 of 2 reported products affectedPartial shortageCetirizine1 of 15 reported products affected · est. return Dec 31, 2023Partial shortageDiphenhydramine2 of 9 reported products affectedPartial shortageDoxylamine Pyridoxine1 of 2 reported products affected · est. return Jul 3, 2026Partial shortageKetotifen1 of 1 reported products affectedNo current shortageKetotifenNo current shortageLoratadineNo current shortageRupatadineDiscontinuedTrimeprazine0 of 2 reported products affected
Class groupings follow the WHO ATC classification in Health Canada's reports. Data reflects manufacturer mandatory filings; see methodology.