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Thursday, June 17, 2021

Difference between Dissolution and Disintegration

The major difference between dissolution and disintegration is that dissolution is the process of dissolving solutes in a solvent that measures the drug being solubilizes in the liquid/media, while disintegration is a process of breaking solid substances into small granules that measure the breakdown of a solid dosage form.

Disintegration and dissolution are the two basic processes that are used for qualification purposes to improve the bioavailability and solubility of the dosage form and to be used in the chemical and pharmaceutical field, which are meant to break the force that grabs substances together. Both methods can be used on the same substance. However, dissolution can be applied to solids, liquids, and gases, and disintegration is applied to large solid substances.

Disintegration time is a process that is required to break down the dosage form in the specified size or into particles, this process is called disintegration. Whereas dissolution is a kinetic process in which the solids dissolve in the solution or dissolution medium, it is controlled by the affinity of solvent and solid substance. In other words, disintegration is measuring the breakdown time of a dosage form, and dissolution is used to measuring the rate of solute or oral dosage form dissolving in a medium or solution.

Dissolution testing:

The dissolution testing is used to determine the drug in pharmaceuticals such as tablets, caplets, or capsules to prepare any solid oral dosage forms according to the pharmacopeias such as USP, BP, or IP criteria. It determines adequate bioavailability and provides data for the formulation of solid dosage forms.

It is an important analytical procedure generally provide release rate of active pharmaceutical ingredient (API) and also used for check for the stability, quality control, and evaluation of the batch-to-batch consistency in the pharmaceutical industry. The different types of dissolution apparatus used to perform the dissolution process such as rotating basket, paddle type, reciprocating cylinder, flow-through cell, and paddle over the disk, rotating cylinder, and reciprocating disk apparatus, etc.

Disintegration testing:

Disintegration testing determines the ability of a tablet to break down into smaller particles or granules so that the active drug can be absorbed into the body. It is used to measure how rapidly a tablet breaks down into tiny particles, allowing for more surface area and drug availability when the patient consumes it. This test is performed using disintegration test apparatus and may also be available in different forms as per USP/IP/BP.

Difference between dissolution and disintegration:

  • Dissolution is the process in which a substance forms a solution, while disintegration is a process of breaking down substances into small particles or their constituent elements.
  • The dissolution process can be carried out only after the particles of low solubility are broken down, while the disintegration process can be carried out for a sample regardless of whether it has a low or high solubility level.
  • The sample to be analyzed in dissolution can be solid, liquid, or gaseous, while the sample to be analyzed in disintegration can be solid substances only.
  • The pharmaceutical dissolution test performs with the help of the dissolution apparatus, while the disintegration study performs on the disintegration tester.

Difference between disintegration time and dissolution rate:

The time it takes for a dosage form to break down into granules of a specific size under precisely controlled conditions is known as disintegration time, while the dissolution rate is the transfer rate of individ0075al drug molecules from solid particles to solution in the form of individual free drug molecules.


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