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Advantages of capsules
Capsules are a convenient way to eliminate the unpleasant taste and smell of medicines by encapsulating the ingredients in a nearly tasteless and odorless shell.
The capsule looks elegant
They are relatively easy to swallow (ideal shape and slippery when moist).
Consumer preferences regarding ease of swallowing, convenience, and taste may improve compliance.
They are easily filled temporarily or commercially in large quantities.
Capsules (usually soft shell capsules) can be formulated to increase the bioavailability of poorly soluble drugs.
Capsules offer opportunities for product differentiation through color, shape and size and product line extension.
Capsules are made from gelatin; Hence they are therapeutically inert.
The stability of therapeutic agents can be improved in a capsule formulation.
Disadvantages of capsules
Capsules are not suitable for very young children
They cannot be used for substances that react with or dissolve the main ingredient gelatin
Capsules become brittle when too dry and may crack during the filling process.
They absorb moisture and soften under high humidity.
Potential stability problems may be associated with capsules containing liquid filling.
Formulation of capsules (usually softgels) requires specialist formulation and incurs high production costs.
