Della Toffola A, Ardizzi A, Giorgis G E, Galietti F, Massaglia G M, Onoscuri E
Minerva Med. 1986 May 31;77(22-23):1005-8.
Eighteen patients hospitalised with acute bronchial asthma are examined. Nine were given aerosol treatment with an ipratropium bromide solution and 45 minutes later with a phenoterol solution. The remaining 9 were given the same treatment in reverse order. The results obtained showed that phenoterol has a stronger bronchodilatory activity than ipratropium bromide, especially when administered after the anticholinergic product.
