Difference between Ointment & Paste| Pharmacy Notes

Pharmaceutical Pastes are semisolid dosage forms that contain one or more drug substances intended for topical/external application to the skin. They are generally very thick & stiff. They differ from ointments in their consistency, as they contain larger amounts of finely dispersed solids (20% to 50%) and so they are thicker and stiffer.

Ointments are semisolid preparations intended for external application to the skin or mucous membranes for protection (calamine, ZnO, TiO2, Silicones) or emollient effect.

PasteOintment
Contains a large amount of finely powdered solids such as zinc oxide, calcium carbonate, starch etccontains medicaments which are dissolved/suspended/emulsified in the base
very thick and stiff so they do not spread easily, result into localizing drug deliverysoft semisolid
less greasymore greasy
applied with a spatula or spread on lintapplied on the skin
form a protective coating to area where it s appliedused as a protective or emollient for the skin
Paste contains a large amount of finely powder which is porous in nature, hence perspiration can escapeused for protection of lesions
they are less macerating than ointmentsthey are more macerating in action
Differentiation between Pastes & Ointments
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1 thought on “Difference between Ointment & Paste| Pharmacy Notes”

  1. Pingback: Pharmaceutical Creams| Pharmacy Notes | The Pharmapedia

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