Capsules and Tablets Flashcards
___ together with ___ are the most
preferable dosage form when taken orally, as it is conveniently carried, readily identified and easily taken.
Capsules; tablets
Capsules are solid pharmaceutical dosage forms in
which the drug or a mixture of drugs is enclosed in a ___ or any other suitable material.
Gelatin Shell
Advantages of Capsules
- Attractive in appearance
- Tasteless, odorless, and easily administered
- Mask the taste and odor of unpleasant drugs
- Easy to handle and carry
- The shells are physiologically inert and easily and quickly digested in the gastrointestinal tract.
- Slippery when moist and, hence, easy to swallow with a draught of water.
Disadvantages of Capsules
- Not suitable for liquids that dissolve gelatin
- Not useful for efflorescent or deliquescent materials.
- Concentrated solutions which require previous dilution are unsuitable for capsules because if
administered as such lead to irritation of the stomach.
Main Types of Capsules
- Hard Gelatin
- Soft Gelatin
The shells of the capsules may be composed of two pieces:
a body and a cap
Two-piece capsules are commonly referred to as ___
hard-shell capsules
One-piece capsules are often referred to as ___
soft-shell capsules
Are used in most commercial medicated capsules.
Hard Gelatin
The empty capsule shells
are made of ___ , ___ , and ___ . As such, they can be clear, colorless, and essentially tasteless
gelatin, sugar, and water
Hard gelatin capsule shells are manufactured in two sections:
body and a shorter cap
Made of gelatin to which
glycerin or a polyhydric alcohol such as sorbitol has been added.
Soft Gelatin Capsule
Soft gelatin contain ___ moisture than hard capsules.
more
Soft Gelatin capsules used to encapsulate and hermetically seal
___ , ___ , ___ , ___ , and even ___ .
liquids;
suspension;
pasty materials;
dry powders;
preformed tablets
They are pharmaceutically elegant and are easily swallowed.
Soft Gelatin capsules
Capsules are available in many different sizes and shapes and can be used for the administration of powders, semisolids and liquids.
000
00
0
1
2
3
4
5
Steps in Hard Gelatin capsule manufacturing process (5)
Step 1: Raw Material Melting & Coloration
Step 2: Blending
Step 3: Molding and Trimming
Step 4: Printing and Packaging
Step 5: Testing, Packaging, and Shipping
First step in the process involves an acceptability test for raw materials. The materials that pass this test are then melted and colored for easy identification.
Step 1: Raw Material Melting and Coloration
Gelatin solution is blended and dissolved in de-mineralised water heated to seventy degrees Celsius.
The solution at this stage is very Viscous and contains 30 to 40% gelatin.
Step 2: Blending
The capsule manufacturing machines receive colored
gelatin in the capsule processing chamber. The caps and bodies of the capsules are made.
Step 3: Molding and Trimming
The printing stage includes all vital information, such as prescription recommendations, advertisements, and capsule branding.
Step 4: Printing and Packaging
After the printing phase is completed, the quality testing phase begins. The end products must undergo stringent quality inspections to ensure that the capsules are of the best quality and possess a long shelf life.
Step 5: Testing, Packaging and Shipping
Steps in Hard Gelatin capsule manufacturing process (6)
Step 1: Gelatin Preparation
Step 2: Fill Material Preparation
Step 3: Encapsulation
Step 4: Drying
Step 5: Inspection and Sorting
Step 6: Cleaning and Polishing
A soft-gel shell is formed to contain and protect the fill material.
Step 1: Gelatin Preparation