Already a couple of posts today so I'll add mine. Big thanks to BLF, Health Unlocked members &M67W77 in particular. Way back last year M67W77 posted about seratide which lead others to add that the possible side effects to SOME users of chest infections. fevers, chills & that this was even in the leaflet in the seratide box. In the 11 months to 3 Dec 2016 I had 11 chest infections & took anti bio's for 18 weeks. My GP had referred me to a consultant because of this plus weight loss in Aug 16 so I told the consultant when I saw her in Oct 16 about this & said the symptoms in the leaflet were exactly me. The consultant said change to Fostair & wrote to my GP so on the 10th Dec I started on Fostair. Last week I had a fever infection my first in 85 days since I finished my last anti bio & over three months since my last chest infection. Since July 2015 I had only gone anti bio free for over 20 days on 7 occasions. Feel so much better. I have Asthma & Bronch.