Classification of dosage forms

A. People who take drugs through the gastrointestinal tract have the first-pass effect of the liver, such as oral administration.

B, people who don't take drugs through the gastrointestinal tract, such as injection, respiratory administration, skin administration, mucosal administration, etc., have no first-pass effect of the liver. Divided into: liquid dosage form, gas dosage form, solid dosage form and semi-solid dosage form.

Common dosage form

Common forms of traditional Chinese medicine are decoction, powder, water injection (solvent is water) and oil injection (solvent is oil); There are also injections with other solvents, such as ethanol (the solvent of hydrocortisone injection is ethanol), glycerol and propylene glycol (PEG).

There are also Chinese herbal medicine injections and sterile powder for injection. The forms of plaster are: black plaster, hundred plaster and rubber plaster.

Microcapsules, liposomes