Saturday, June 1, 2013

Dissolution



Dissolution


















Dissolution:                                                      

The process by which the solid particle or medicament are dissolve in suitable solvent for ease of absorption.


 Difference between Dissolution and assay? 

Dissolution is the amount of drug released in a certain period of time from a dosage form on the other hand Assay is the amount of drug that is contained by a unit dosage form of medicament. The amount of drug that is contained by a unit dosage form of medicament may not be released completely after a certain period of time.

Why it is important character of a tablet & capsule?

Tablet & Capsule are solid dosage form. Unless dissolve the content of the Tablet or Capsule in a suitable solvent it cannot be reached in the systemic circulation by absorption. For this reason dissolution is important character of Tablet & Capsule that is solid dosage form. Simulated Gastric Fluid (SGF) & Simulated Gastro Intestinal Fluid (SIGF) are widely used as dissolution media.

 The dissolution media of tablet and capsule? Why it is different? 

The commonly used dissolution media of tablet & capsule are Simulated Gastric Fluid (SGF) & Simulated Gastro Intestinal Fluid (SIGF). They are deferent because some drug are dissolve in Gastric pH and some drug are dissolve in intestinal pH.

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