Compounding Dr Fei Flashcards
what is medicine?
Final form of drug taken by patient usually contains exicipents
What is dosage form
Physical form of medicine
dosage form
physical form of medicine
what is compounding
prepare and pack medicine on a small-scale
Formulation
the process or end-result of combining ingredients to produce a product
three types of dosage rooms
solid, liquid, semi-solid
Liquid solution?
homogeneous dispersions on the molecular
level (a one-phase system)
suspensions
coarse dispersions of solids in liquids
Emulsions
coarse dispersions of liquids in liquids (e.g. oil-in-water)
semisolid?
do not flow under normal conditions but usually retain their shape (like a solid), but can deform and spread when a force is applied (like a liquid).
cream
semisolid emulsions
Ointments
semisolid fatty material, usually oily or
hydrophobic
paste
ointment or other semisolid containing a high amount of powders
gels
range from very viscous liquid to weak solid
Suppositories / pessaries
shaped fatty or gel devices, solid
at room temperature but melt or dissolve in body
tablet
powders or granules compressed into disc or similar shape
Capsule (Hard Gelatin Capsule)
rigid shell, usually made from gelatin, filled with powders or granules
Capsule (Soft Gelatin Capsule)
flexible shell filled with liquid or gel, usually oily
Powders and Granules
a pharmaceutical granule is an aggregation of powders
Aerosols
liquid droplets or solid particles in pressurised gas
Specialised Drug Delivery Devices
a complex device or system to give controlled administration of drug (e.g. transdermal drug delivery devices - ‘skin patches’; pumps)
Types of therapeutic effects
Systemic and local
