What Is a Dosage Form?

Dosage form means that after the composition of the prescription, it is made into a certain form according to the condition and the characteristics of the drug. A pharmaceutical application form prepared to meet the needs of treatment or prevention is called a pharmaceutical dosage form, or a dosage form for short.

[jì xíng]

Dosage form means that after the composition of the prescription, it is made into a certain form according to the condition and the characteristics of the drug. A pharmaceutical application form prepared to meet the needs of treatment or prevention is called a pharmaceutical dosage form, or a dosage form for short.

Chinese name

Dosage form

Foreign name

Dosage Form

Definition explanation

The form of the pharmaceutical preparation

Sufficient

Play the therapeutic role of drugs

Reduce or avoid

Adverse reactions

Function

Pharmacology

Convenient for clinical use, give full play to the therapeutic effect of drugs, reduce or avoid adverse reactions. Such as tablets, capsules, ointments, etc., the same drug can be made into different dosage forms according to clinical needs. For example, nimodipine has tablets and injections. Different dosage forms have different use characteristics, and the same drug dosage form has different effects. Sometimes it's different.

The form of the pharmaceutical preparation. Also refers to pharmaceuticals (finished drugs) made according to the nature of the drug, as well as the requirements of treatment and prescription. The proper dosage form is to exert the best effect of the drug, reduce toxic and side effects, and facilitate the use, storage and transportation.

As early as the Yin and Shang dynasties, there was a record in the oracle bone inscriptions of "Qi Qi Jiu", and the preface of the "Acupuncture and Moxibustion of Jia Yi Jing" stated that "the decoction began in Yi Yin."

Traditional dosage forms include decoctions,

Dosage form can change the action properties of drugs

Dosage forms can change the speed of action of drugs, for example, injections, inhalation aerosols, etc. Fast-acting preparations are often used for first aid; pills, slow-release control agents, implants, etc. are long-acting preparations.

Changing the dosage form can reduce (or eliminate) the toxic and side effects of the drug

can produce targeting effects

Dosage form can affect curative effect

Classified by route of administration

A. Humans have first-pass effects on the liver, such as oral administration.

B. Non-gastrointestinal dosage forms have no liver first-pass effect in humans, such as: injections, respiratory administration, skin administration, and mucosal administration.

Classification by form

Divided into: liquid dosage form, gas dosage form, solid dosage form and semi-solid dosage form.

Common dosage forms

Common Chinese medicine types are soup, powder,

Liquid dosage form

Including: solvent-based, aromatic liquid, tincture, tincture, colloidal solution, glue, suspension, opacifying agent.

Injection form

Water injection (solvent is water), oil injection (solvent is oil); injections with other solvents are also available, such as ethanol (the solvent of hydrocortisone injection is ethanol), glycerol, propylene glycol (PEG), and so on.

There are Chinese herbal medicine injections and sterilized powders for injection.

Infusion

Including glucose, physiological saline, Ringer's solution, mannitol, metronidazole, compound amino acids, polyalcohols, fatty milk and other infusions.

Ophthalmic formulation

Including: liquid ophthalmic preparation, semi-solid ophthalmic preparation (eye ointment), ophthalmic film, ophthalmic injection.

Powder

Including: general powder, powder containing highly toxic drugs, powder containing liquid components, powder containing extracts, effervescent powder, traditional Chinese medicine powder, sterilized powder.

Leaching dosage form

Including: decoction and Chinese medicine mixture, liquor tincture, flow extract, extract, decoction, granules, granules, oil extract.

tablet

Including: plain tablets, sugar-coated tablets, enteric tablets, sucking tablets, chewable tablets, effervescent tablets and controlled release tablets.

Capsule

Includes hard and soft capsules. Hard capsules include: instant capsules, freeze-dried capsules, magnetic capsules, double-chamber capsules, enteric capsules, sustained-release capsules, implant capsules, aerosol capsules, and effervescent capsules. Soft capsules include: quick-acting capsules, skeleton capsules, sustained-release capsules, coated horn capsules, rectal capsules, and vaginal capsules.

Pill form

Including: water pills, cream pills, paste pills, wax pills and concentrated pills.

Ointment

Ointment formulations include: greasy base ointments, emulsion base ointments, and water-soluble base ointments.

(11) Plaster formulation

Plaster formulations include: black plaster, 100 plaster, rubber plaster.

Microcapsules, liposomes