Estrogen transdermal patches in intermittent shortage as MHT demand rises

Increased demand for menopausal hormone therapy is causing intermittent supply gaps in some estrogen transdermal patches in Canada. Per CPhA this is not a Tier 3 shortage and alternatives remain available — patches from other manufacturers, plus transdermal gels, vaginal creams, and tablets. Expect substitution requests and patient questions at the counter; the Canadian Menopause Society's systemic MHT equivalency table helps when switching formulations.

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