| 1. A method of treating undesired and/or uncontrolled bronchoconstriction comprising the steps of:
(a) adding to a nebulizer, from a propellant-free, sterile unit dose in pharmaceutical packaging material about 1 to about
3 mL of a pharmaceutical composition comprising formoterol or a salt thereof at a concentration of from about 0.08 μg/mL to
about 43 μg/mL based on formoterol free base, in a pharmacologically suitable solution, wherein the composition further comprises
water and a buffer selected from the group consisting of citric acid/phosphate buffer, acetate buffer, citrate buffer and
phosphate buffer at a concentration of from about 1 mM to about 50 mM, said composition having a pH of between about 4.5 and
about 5.5; and
(b) directly administering said composition to a subject in need thereof, without dilution or other modification of said prior
to administration.
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