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The solution is a liquid oral dosage form, administrated through the oral route. It is a homogenous, clear liquid. One (or) more ingredients are dissolved in a suitable solvent to make a dosage form. The solution is a combination of solute and solvent. Solute: Which is dissolved in the medium present “small quantity”. Solvent: This … Read more
Preparation of soft gelatin capsule by rotary die process Soft Gelatin Capsule: These are used for the administration of liquid medicaments. Soft gelatin capsules are available in round, oval, and tube-like shapes. They are made from gelatin. The gelatin is plasticized by the addition of glycerin and sorbitol etc. The soft gelatin shell may contain … Read more
Hand operated Capsule filling machine Consists of: The empty capsules are filled in the loading tray and it is placed over the bed. The cam handle is operated to separate the capsule caps from their bodies. The powder tray is placed in a proper position and filled with an accurate quantity of powder with the … Read more
Capsule is defined as the solid dosage form, in which the drug substance is enclosed in a water soluble shell. This shell is made from gelatin. Types of capsules: Hard Gelatin Capsules: These are used for administration of solid medicaments. The capsule shell is prepared from gelatin, colour and titanium dioxide to make it opaque. … Read more
Uncoated tablets: A single layer (or) more than one layer of formulation that consists of active ingredients and recipients compressed together without any additional coat. Also, no other treatment is given to such tablets after compression. Types of uncoated tablets Modified tablets These tablets deliver a drug with a delay after its administration. These are … Read more
Coating Tablet coating is a process, applied to the tablet, surface. The substance used for coating is usually applied as a solution (or) suspension. Types of coating 1. Sugar coating: Sugar coating is done by using the pan coating method. Here sugar is used to mask the bitter and unpleasant odor and taste of the … Read more
Tablets are the solid dosage forms containing medicament, (or) medicaments, usually circular in shape and may be flat (or) biconvex. Tablets are prepared by compression method. Types of tablets (A) Tablets ingested orally: (B) Tablets administered by other routes : (C) Tablets used in the oral cavity: (D) Tablets used to prepare a solution: Also … Read more
Extraction: It is a process of plant (or) animal tissues with solvent, whereby the medicinally active constituents are dissolved, and most of the inert matter remains undissolved. The solvent used for extraction is known as “menstruum”. and the inert insoluble material, that remains after extraction is called “marc” Various extraction processes are : Classification of … Read more
Freeze drying is a process of water vapours from a frozen silution by sublimation Processing of freeze drying (i) Pre-treatment: This step is done to reduce the volume of the solution to be introduced into the container. The solution is pre-concentrated under normal vacuum tray drying. Sometimes solid or liquid desiccants are also used for … Read more
Theory Fluid bed dryer Fluid bed dryer: If gas is allowed to flow upward through a bed of solid particles at a velocity greater than the setting velocity of the particles, the particles are partially suspended in the gas stream. The resultant mixture of solids and gas behaves like a liquid and the solids are … Read more