Take a Deep Breath: Treatment of Pneumonia tl;dr pharmacy Community acquired Pneumonia and Hospital acquired Pneumonia Medical Clinics IDSA HAP VAP guidelines : we suggest prescribing 2 antipseudomonal antibiotics from different classes + Linezolid or vancomycin for the empiric treatment of suspected HAP if patient received IV antibiotics within 90 d(weak Frontiers Impact of clinical pharmacist led antimicrobial stewardship on antibiotic appropriateness, clinical outcomes, and antimicrobial consumption in hospital acquired and ventilator associated pneumonia: a randomized controlled trial