Drug Evaluation Process Overview

Morphological and organoleptic evaluation is a technique used in the standardization of crude drugs.

Evaluation of drug aims to identify and determine the quantity and purity of the crude drug.

Physical evaluation is not included in the evaluation process of crude drugs.

Detection of nature of adulteration is a part of drug evaluation.

Biological behavior of crude drug extracts is not considered in the evaluation process.

The physical evaluation of drugs includes determining the moisture content by cooling the drug at 105°C in the oven.

Physical standards for crude drugs are constant and consistent across different specimens of the same drug.

The presence of adulterants in a drug can be indicated by its solubility; glycosides are soluble in nonpolar solvents like benzene.

Refractive index is not constant for pure drugs at a constant temperature.

Chemical evaluation includes isolation, purification, and identification of active constituents using methods such as acid value and ester value tests.