The two groups also showed no difference in the percentage of days on which the children’s asthma was in control (85.8% with paracetamol v 86.8% with ibuprofen; P=0.5), in their use of a salbutamol rescue inhaler (2.8 and 3.0 inhalations a week; P=0.69), or in unscheduled visits to healthcare facilities for asthma.