Dosage forms are provided for most of the Pharmacopeial drug substances,but the processes for the preparation of many of them are,in general,beyond the scope of the Pharmacopeia.In addition to defining the dosage forms,this section presents the general principles involved in the manufacture of some of them,particularly on a small scale.Other information that is given bears on the use of the Pharmacopeial substances in extemporaneous compounding of dosage forms.