Dosage forms : Introduction to dosage forms, its definition and classification

 PART - 2

Quick definitions and classifications of dosage form

Introduction to dosage form Part 1

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In todays blog we will discuss the various classification of the dosage form because it becomes impossible for a normal human being to memorize and collect al dosage form in one glance.

There is need to categorize the all dosage form by considering some criteria so that all the dosage form can be memorized and recollect.

There are ton of dosage form that is need to be memorized by pharmacist of his well being.

So the criteria are according to route of administration and according to state of that dosage form.

 §  CLASSIFICATION OF DOSAGE FORMS ACCORDING TO ROUTE OF ADMINISTRATION:-

 

a.  Topical

b. Oral

c.   Parenteral

d. Ophthalmic

e.  Rectal

f.    Vaginal

g.  Inhalers

§  CLASIFICATION OF DOSAGE FORMS ACCORDING TO PHYSICAL STATE OF MATTER:-

SOLID DOSAGE FORM

UNIT	BULK
Tablet	Fine powder granules
Capsules	Effervescent granules
Powder	Dusting powders
Pills	Insufflation
Lozenges	Dentifrices
Cachets and Pills	Snuffs

 

 

LIQUID DOSAGE FORM

MONOPHASIC LIQUID DOSAGE FORM	BIPHASIC LIQUID DOSAGE FORM
Syrup	Suspension
Elixir	Emulsion
Gargles
Mouthwashes
Throat paint
Douches
Liniments
Lotion
Enemas
Nasal drops
Ear drops
Eye drops

 

SEMI- SOLID DOSAGE FORM

Ointment

Paste

Jellies

Suppositories

Pessaries

Cream

Now here we covered each and every traditional and olden dosage form but the new ones is yet to be classified such as implants and erythrocytes.

Each and every drug is perfect in its own way. Drug apart from its action has its own diversity.

Some drugs stimulate the CVS or some depresses it.

Eg- mydriatic drugs dilate the pupil of eye where as miotics constrict the pupil of eyes.

Eg- Emetics induces vomiting and antiemetics suppresses vomiting.

 

Now here question arises how these are synthesized? Or are these god made or some kind of super natural powers included in it.

 

Q. How the drugs are synthesized?

New drugs that are derived from animal and plant sources or in some case mineral sources as a byproduct of microbial growth, chemical synthesis. It requires sophisticated methods of screening of drug discovery.

 

Q. Is it possible to bring the new drugs into the market?

The answer is Yes! The process of drug discovery is complex.

When the new drug is discovered it undergoes huge contributions of organic, physical and analytical chemists, biochemists, physiologists, bacteriologists, pharmacologists, cardiologists, toxicologists, and many more…..

When drug is discovered its physical structures and organic structures are determined. When it is administered its absorption, distribution, metabolism, and excretion is determined.

The determination also considered that How the drug is absorbed or what are the channels that open or closes on entry of drug….

 Is there any kind of adverse effect are there by intaking the drug. How it is eliminated?

What are its consequences?....

Every drugs has its own way of acting. for example the drugs used in CHF (Coronary Heart Disease) Likewise ACE inhibitor ( Captopril ...) acts by inhibiting the angiostensin converting enzyme , some act by inhibiting the enzyme Renin.

So that's it! I would like to request you to please let me know about my article writing and what are its glichtes. I would like to review many research papers. Please do let me know in comment section that what research papers would you like to review by me. I will try my best.