摘要 |
The invention relates to the field of rectal administration of an essentially non-aqueous foamable composition comprising a liquid polar polyol or polyol mixture, optionally in admixture with a minor amount of water, a pharmaceutically active ingredient, one or more foam-stabilizing and emulsifying surfactants, and optionally conventional additives for pharmaceutical compositions, all ingredients being pharmaceutically acceptable and being mixed in such proportions and with such an amount of a propellant having such a vapour pressure that only a partial foaming action is obtained initially when the pharmaceutical preparation is rectally administered. |