Small quantities of other liquid pharmaceuticals, which are not controlled substances, anti-infective drugs, or antineoplastics, can be flushed into sewers. If there are no sewers or there is no functioning sewage treatment plant, liquid pharmaceuticals can be first diluted with large volumes of water and poured into large watercourses, providing they are immediately dispersed and diluted by the flowing river water.

Liquid pharmaceutical waste may be disposed of using the cement encapsulation procedure (see Section 2.3), high temperature incineration or in cement kilns (see Section 2.8).

It is not acceptable to discharge liquid pharmaceuticals, diluted or not, into slow moving or stagnant surface waters.