Dosage Forms: Introduction to Pharmaceuticals


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

For dilution

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

As thickeners

To harden/thicken creams and ointments

As stabilizers

To maintain the stability of a pharmaceutical preparation

As preservatives

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.

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