A 35-year-old man develops sudden wheeze, hypotension and generalised urticaria minutes after receiving intravenous Co-amoxiclav. He has difficulty speaking and stridor. What is the most appropriate immediate drug treatment?AIntravenous Chlorphenamine 10 mgBIntramuscular Adrenaline 500 micrograms into the anterolateral thighCIntravenous Hydrocortisone 200 mgDNebulised Salbutamol onlyEOral Prednisolone 40 mgCheck my answer