Abstract

Shivani Saxena*, Navneet Thakkar, Sharmistha

ABSTRACT

Pharmaceutical aids are the substances which have no or little pharmacological effect but they are essentially used in the preparation of pharmaceutical dosage form (like tablet, injection, emulsion, ointments etc). Pharmaceutical coloring agents are added to pharmaceutical dosage form to enhance its sensory characteristic of patient. Pharmaceutical coloring agents are used at relatively low concentration be achieve the desired effect. They may to natural or synthetic. Pharmaceutical coloring agents undergoes toxicological analysis. Flavoring agents also contribute to the overall sensory quality of pharmaceutical dosage form. Flavoring agents refers to a mixed sensation of taste, touch, smell, sight and sound. All of which involve combine of physiochemical and physiological action that influence the perception of substances. Preservatives are commonly used as additives in pharmaceutical formulation. Some liquid medicinal preparations are susceptible for microbial growth because of the water present in the formulation. Preservatives are used to protect such pharmaceutical formulation. Preservatives avoid degradation and alteration of pharmaceutical product.