There is some evidence that quadrupling the maintenance dose of inhaled corticosteroids, 73 or treating with a high dose of inhaled corticosteroids, 74 , 75 , 76 reduces the severity of asthma flare-ups. For patients taking inhaled corticosteroid/long-acting beta 2 agonist combinations, this can be achieved by adding a separate high-dose inhaled corticosteroid inhaler to the patient’s usual maintenance treatment for 7–14 days. This strategy may be useful for patients who experience clinically important side-effects with oral corticosteroids, but may not be suitable for patients who cannot afford the extra medicine or who experience hoarseness with high dose inhaled corticosteroid.
The most commonly reported side effects were: oral thrush , nausea , headache , and pain in the pharynx or larynx . More rarely reported side effects (occurring in <1% of patients during the clinical trial) include: tachycardia , palpitations , dry mouth , allergic reaction ( bronchospasm , dermatitis , hives ), pharyngitis , muscle spasms , tremor , dizziness , insomnia , nervousness , and hypertension . Patients experiencing an allergic reaction or increase in difficulty breathing while using this medication should immediately discontinue its use and contact their physician.