Therapeutic incompatibility arises as a result of prescribing certain categories of drugs to patients with a sole intention of achieving a specific degree of pharmacological action. However, the nature or intensity of the resultant activity is quite different from that intended by the prescriber. Therapeutic incompatibility results due to the following reasons:

Learning Objective Mixtures with chemical incompatibilities are as follows:

Learning Objective The following are the various types of mixtures with physical incompatibilities:

Learning Objective Incompatibility may be defined as mixing two or more antagonistic substances resulting in an undesirable product, which may affect the safety, efficacy and appearance of the preparation. There are three types of incompatibilities: