[Sir_Dispensalot]

i was under the impression that because salmeterol is a long acting beta2 agonist it should only be given in a bd dosage. It wouldn't be too dangerous to give it tds but the patient is at risk of developing ventricular arrhythmia or prolonged QT interval as the risk of side effects is increased. It might be wise to speak to the resp. nurse about it if possible to see the clinical reasoning behind it and why the patient isn't simply being switched to a different treatment regimen if bd salmeterol isn't enough.