Abstract
Thirty patients with acute exacerbations of chronic obstructive bronchitis were treated sequentially with 10-day courses of BRL 25000 (750 mg t.i.d.) and doxycycline (200 mg on Day 1, then 100 mg daily) in alternating order. BRL 25000 is a formulation of amoxycillin 500 mg with clavulanic acid 250 mg, a β-lactamase inhibitor which protects amoxycillin from destruction by these enzymes. BRL 25000 gave clinical results which compared favourably with those of doxycycline and should prove a useful antibiotic for patients with chronic obstructive bronchitis, especially against infections due to problem organisms.