Dosage Form Development Flashcards
It is a finished formulation of a drug preparation designed
to contain a specific amount of a medication.
Dosage Form
Reasons for the need of Dosage Forms
Protection of drug substance from the destructive
influences at atmospheric oxygen or moisture.
Protection of the drug from the destructive
influence of gastric acid after oral administration
Conceal the salty, bitter, offensive taste
or odor of a drug substance.
Provide liquid dosage forms of substances soluble in the desired vehicle.
Provide liquid preparations of
substances that are either insoluble or
unstable in the vehicle.
Make minute or small dose of a drug larger enough to be picked up with the fingers.
Physicochemical Parameters
- Melting point
- Phase Rule
- Polymorphism
- Particle size
- Solubility
- Membrane permeability
- Partition coefficient
- Dissociation constant
Capability of a particular formulation in a specific container or closure system to remain with in its physical, chemical, microbiological, therapeutic and toxicological specifications.
Stability
Limits the time during
which the product may be dispensed by the
pharmacist or used by the patient.
Expiration Date
the duration of time during which a drug preparation will remain physically, chemically, therapeutically, toxicology and microbiology stable (possessing NLT 90% of the labeled potency).
Shelf life
Types of Stability
- Chemical
- Physical
- Microbiologic
- Therapeutic
- Toxicologic
Stability study conducted under the usual or normal conditions
of the environment, transport and storage
expected during product distribution.
Long-term or actual
Stability studies designated to increase the rate of
chemical or physical degradation of a drug
substance or product by using exaggerated
storage conditions.
Accelerated
The shelf-life of extemporaneous Preparations of Non-aqueous liquids and solids of a manufactured product
6 months, or not later than 25% of the time
remaining
The shelf-life of extemporaneous Preparations from the USP/NF active of Non-aqueous liquids and solids
6 months
The shelf-life of extemporaneous Preparations of Aqueous products from a manufactured solid form
14 days stored at cold temp
The shelf-life of extemporaneous Preparations of Non-Aqueous products from a manufactured solid form
30 days