Clear, colourless or almost colourless liquid, free from suspended particles.
BERODUAL N Metered Dose Inhaler: 1 metered dose (puff) contains: (8r)-3α-hydroxy-8-isopropyl-1αH,5αH-tropanium bromide (±)-tropate monohydrate 21mcg (= ipratropium bromide) corresponding to 20 mcg ipratropium bromide anhydrous 1-(3,5-dihydroxy-phenyl)-2-[[1-(4-hydroxy-benzyl)-ethyl]-amino]-ethanol hydrobromide 50mcg (= fenoterol hydrobromide).
Propellant: 1,1,1,2-Tetrafluoroethane (HFA 134a).
Excipients/Inactive Ingredients: Anhydrous citric acid, purified water, absolute ethanol, nitrogen (inert gas).