These are aqueous solutions with a pleasant taste to clean, deodorize the buccal cavity. Mouthwashes have refreshing, antiseptic and antibacterial activity and prevent Halitosis.
They may also contain alcohol, glycerin, synthetic sweeteners,
surfactants, flavouring and colouring agents. They may be either acidic or
basic in their reaction and in some instances are fairly effective in reducing
bacterial concentration and odours in the mouth for short periods of time.
For example: Compound sodium chloride mouthwash, Zinc
chloride mouthwash, and Fluoride mouthwash.
Storage: Keep in a cool
and dry place, Dispense in clear, fluted bottles.
Labelling: FOR EXTERNAL USE ONLY
• Not to be swallowed in large amounts
• Pack in narrow mouth bottle
Formula: Rx
Zinc sulphate and zinc chloride mouthwash B.P.C.
Zinc sulphate – 20 g
Zinc chloride – 10 g
Oilute hydrochloride acid – 10 ml
Compound tartar zine solution – 10 ml
Chloroform water to produce – 1000 ml
The preparation may be made by dissolving Zinc
sulphate and Zinc chloride in a small quantity of Chloroform solution. To this
is added dilute hydrochloric acid and compound tartrazine solution and the
final volume is made up with water.
Zinc sulphate and Zinc chloride included in the preparation
acts as astringents. Chloroform water
acts as the flavouring agent and preservative while tartrazine serves as the colour.
Zinc sulphate usually contains a small quantity of oxychloride which may make
the solution turbid. This however disappears on the addition of dilute
hydrochloric acid.