Azitromicina en infeccu¡iones respiratorias con baja procalcitonina muy poca eficacia.

Placebo was not non-inferior to azithromycin in terms of clinical improvement at day 5 in adults with lower respiratory tract infection and a low procalcitonin concentration. After accounting for both the rates of clinical improvement and solicited adverse events at day 5, it is unclear whether antibiotics are indicated for patients with lower respiratory tract infection and a low procalcitonin concentration.

https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(22)00735-6/fulltext