The present application relates to a pharmaceutical preparation comprising (a) from 0.15 to 3 weight percent of glyceryl trinitrate, (b) from 40 to 95 weight percent water, and (c1) from 2 to 10 weight percent of at least one water soluble polymer, or (c2) from 1 to 10 weight percent of at least one water soluble polymer and 5 to 20 weight percent of ethanol.