Explain why there is need of different dosage form.

Explain why there is need of different dosage form.
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1 Answer

Answer :

Need of dosage forms :

1. To protect drug substances from oxidation, hydrolysis, reduction etc.eg. coated tablets, sealed ampoules etc.

2. To protect the drug from destructive effect of gastric juice. eg. - Enteric coated tablets.

3. To provide a safe and convenient delivery of accurate dose. eg. - Tablet,  Capsule.

4. To conceal the bitter taste or obnoxious odour of a drug substance.eg. –

Capsule, coated tablets, flavoured syrups.

5. To provide optimum drug action in inhalation therapy.eg. Aerosols and inhalers.

6. To provide for the insertion of drug into body cavity. Eg. Suppositories &pessaries.

7. To provide maximum drug action from topical administration sites. Eg. Creams, ointments, ophthalmic preparations, ENT preparations.

8. To provide liquid dosage form of the drugs which are insoluble or unstable in different vehicles.eg. Suspension

9. To provide liquid dosage form of the drugs which are soluble in a suitable vehicle.eg. Solutions

10. To provide drugs within body tissues. Eg. Injection xi. Sustained release action to control the release mechanism. Eg. Sustained release tablets, capsules and suspensions.
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