This article is a sufficient beginning to know everything about pharmaceuticals. If you are just starting to know about this amazing field, this is a good guide for you.
Drug is the substance used to cure, treat, restore the health state, or optimize a malfunction. Fundamentally, this substance is brought from plants or animals. Rarely, the drug is administered in its primary or crude form. In other words, the drug can be natural, synthetic, or semi-synthetic. The drug’s crude form passes by different processes to give rise to what is called dosage forms.
During manufacturing, the crude drug is called a pharmaceutical preparation. Dosage form is the crude drug in its final form after adding particular characteristics to it. The drug manufacture includes addition of additives; pharmaceutical ingredients.
The additives are mainly non-medicinal substances used for many purposes. They are added to enhance the drug form, quality, and efficacy.
They are used:
As solubilizing agents
For dissolving the drug in a solvent as in the formation of solutions
To decrease or optimize concentration
As suspending agents
To suspend solid particles in a solution and form a suspension
As emulsifying agents
To dissolve water in oil or oil in water and produce an emulsion
To harden/thicken creams and ointments
To maintain the stability of a pharmaceutical preparation
To protect the pharmaceutical preparations from contamination by microorganisms such as bacteria and fungi
As coloring agents
To give the drug a perfect appearance and attractiveness.
As flavoring agents
To hide a bad taste like the bitter taste. Moreover, flavoring agents are used to add a reasonably good taste to the drug and increase its palatability.