Advanced Nano Research and Nano Tech Applications

Nano Pharmaceuticals

Formulation studies include developing a preparation of the drug which is both stable and acceptable to the patient. For orally administered drugs, this usually includes incorporating the drug into a tablet or a capsule. It is important to make the difference that a tablet contains a variety of other potentially inert substances apart from the drug itself, and studies have to be carried out to ensure that the encapsulated drug is compatible with these other substances in a way that does not cause destruction, whether direct or indirect. Formulation studies also consider such factors as particle size, polymorphism, pH, and solubility, as all of these can influence bioavailability and hence the action of a drug. The drug must be combined with inactive ingredients by a method which ensures that the quantity of drug present is consistent in each dosage unit e.g. each tablet. The dosage should have a uniform appearance, with an acceptable taste, tablet hardness, or capsule disintegration.