Carminatives are drugs that relieve flatulence by facilitating increased gastric emptying and mildly irritating the gastric mucosa, which increases peristalsis and expels gas. They act through mild irritation that increases gastrointestinal motility and liberates carbon dioxide. Demulcents relieve irritation of mucous membranes by forming a protective film and are sometimes called mucoprotective agents. Common demulcents include pectin, glycerin, and honey, which are ingredients in cough mixtures.

1. CARMINATIVES

2. These are the drugs that relieves
“flatulence” ie; the accumulation of
gas in the alimentary canal and helps
to expel gas from stomach and
intestine.

3. Mechanismof action:
These compounds facilitates an increase in gastric emptying
and are mildly irritating to the gastric mucosa. So, that peristalsis
is increased, there by relieving cramping and expelling gas.
These act by:
* Mild irritation resulting in increased GI motility .
* Liberating Carbondioxide.

4. DEMULCENTS
These are the drugs that relieves irritation of the mucous
membranes in the mouth by forming a protective film.
Demulcents are sometimes referred to as mucoprotective
agents.
Demulcents such as pectin, glycerin, honey, and syrup
are common ingredients in cough mixtures and cough
drops. Methylcellulose, propylene glycol and glycerine
are synthetic demulcents.