Pharmaceutical formulation combines an active drug with other ingredients to create a medicinal product that can be given safely and reliably. This lesson explains how formulation studies begin, how a product develops during clinical trials, and why stability and packaging compatibility matter.
Pharmaceutical formulation is the process of combining an active drug, or active pharmaceutical ingredient (API), with other substances to produce a final medicinal product. The term formulation is also often used to include the product's dosage form, such as a tablet, capsule, or liquid.
All flashcards
What is an API?
An active pharmaceutical ingredient: the active drug substance in a medicinal product.
What does preformulation investigate?
It characterizes the drug's physical, chemical, and mechanical properties to guide excipient selection and preparation design.
What is drug loading?
The proportion of a dose made up by the active drug. Low loading can hinder uniform distribution; high loading can cause flow or capsule-size problems.
What is lyophilization?
Freeze drying that removes water from a liquid drug to form a solid powder or cake.
Why test container-closure compatibility?
To detect unwanted interactions, such as ingredients adsorbing onto packaging or packaging substances leaching into the medicine.
Quiz questions
Why should a phase III formulation have supporting stability information?Answer: Degradation during the trial could make the dose participants received uncertain and undermine interpretation of the results.
How does an osmotic controlled-release system deliver its drug?Answer: Water enters through a permeable membrane, and pressure pushes the drug out through a small opening.
What is the purpose of an acid-resistant coating on an oral tablet?Answer: It delays disintegration until the tablet reaches the intestine.
Which description best fits a typical cream used on the skin?Answer: An emulsion with oil and water in approximately equal proportions.
Why are protein medicines often delivered parenterally?Answer: The digestive tract can destroy these fragile molecules.