COVID-19 in Relation to Chronic Antihistamine Prescription.

No hospitalizations or deaths occurred in residents with the COVID-19 infection, treated with antihistamines and azithromycin, of two external nursing homes during the first wave. We assessed whether patients receiving chronic antihistamines in our institution showed better clinical evolution. COVID-19 admissions and related deaths in the public Hospital of Terrassa ( = 1461) during the pandemic period (11 March 2020-5 May 2023) and cases ( = 32,888) during the period of full suspicion diagnosis (1 June 2020-23 March 2022) were referred to as the number of chronic treatments (nT) including or not including antihistamines (AntiHm or NOAntiHm), and their vaccination status before the first infection (VAC or NoVAC) in our assigned population ( = 140,681 at March 2020) was recorded.

COVID-19 in Relation to Polypharmacy and Immunization (2020-2024).

Background: Observational studies reported worse COVID-19 evolution in relation to polypharmacy and reductions in COVID-19 hospital admissions and death in patients receiving chronic antihistamine treatment. The current profile of hospitalized patients with regard to different variants was analyzed to identify specific targets for future prospective trials.

Methods: COVID-19 admissions to the Hospital of Terrassa (11 March 2020-28 August 2024 (n = 1457), from the integral Consorci Sanitari de Terrassa population (n = 167,386 people) were studied.