because of inconvenience and higher required dosage parenteral administration likely would be most useful in emergency situations but it is contemplated that the present invention will be most useful in a preventative manner or for relief via self administration when the gallopamil is delivered via a nebulized saline solution enough solution should be used to provide a gallopamil dose of about 1 20 mg preferably 1 10 mg this dosage can be repeated up to three or four times per day when a metered dose inhaler is used in place of the nebulization the dose of gallopamil may be reduced to about one tenth of the nebulized dose preferably about 0 1 1 mg of gallopamil as noted above a nebulized aerosol composition can be made using 0 4 saline as the carrier for gallopamil to be delivered in a nebulized manner suitable solubilizers and other presently known components for aerosol compositions can be used if necessary or desired carrier gases presently known for use in metered dose inhalers such as freon are suitable for administering gallopamil from a metered dose inhaler subjects documented to be susceptible to intermittent asthma attacks due to causes such as allergens exercise smoke etc are selected the dose pd 20 of methacholine an asthma inducer necessary to produce a 20 decrease in forced expired volume in one second fev 1 is determined for each subject with each subject having a pd 20 of less than 12 mg ml administration of nebulized gallopamil 3 ml of a solution containing amounts of gallopamil varying from 1 20 mg 4 ethanol and 4 propylene glycol in sterile saline ph adjusted to 6 with sodium bicarbonate increases the pd 20 for methacholine by 2 3 fold.