Jellies are translucent or translucent non-greasy, semisolid preparations meant for external
application to the skin or mucous membrane.
Types of Jellies
1) Medicated jellies
2) Lubricating jellies
3) Miscellaneous jellies;
a)Patch testing
b)Electro-cardiography
Medicated jellies
used on mucous membrane and skin for their spermicidal, local anaesthetics, and
antiseptic properties.
These jellies contain sufficient water which evaporates & provide a local cooling effect.
For example, ephedrine sulphate jelly as a vasoconstrictor &Proxamine hydrochloride
as local anaesthetic
Lubricating jellies
These jellies are used for lubrication of diagnostic equipment such as, surgical
gloves, cystoscopes, fingerstalls, catheters, rectal thermometers etc.
These jellies should be sterile
Miscellaneous jellies
Patch testing :
These jellies are used as a vehicle for allergens which are applied on the skin to check
the sensitivity.
On drying, the residual film is formed which helps to keep the patches separate and
avoid confusing results.
Electro-cardiography::
The jelly is applied on the electrode to reduce the electrical resistance between the
patient's skin and the electrode. The jelly contains sodium chloride, pumice powder
and glycerine.
Disadvantages of jellies
Due to hygroscopic nature it will loose its consistency.
Preservation problem due to gelling agent.
Fluctuation in temperature will effect its consistency.