Lassar' s paste

PASTES 

Pastes are semisolid dosage forms that contain one or more drug substances intended for topical application.

Synonym : Zinc and Salicylic acid paste BP 1988 

   

Theory : Lassar's paste is named after scientist Oskar Lassar, he developed it for treatment of eczema. Zinc oxide works by forming a barrier on top of the skin that protects the area from moisture and irritants. Starch enhances viscosity. This medication is also used treat and prevent diaper rash and other minor skin irritation, burns, cuts, scrapes.

THE LASSAR'S PASTE

  

SR     NO.	INGREDIENTS	QTY	ROLE
1	Zinc oxide	240g	Astringent
2	Salicylic acid	20g	Keratolytic agent
3	White soft  paraffin	500g	Emollient
4	Starch	240g	Absorbs moisture

 

Procedure: 

1. The white soft paraffin was melted by warming in a water bath.

2. Salicylic acid, starch and zinc oxide are sieved and weighed.

3. The powders were incorporated into the molten base and stirred till cold.

  

Storage : Store in cool place away from heat, light and moisture.                       

Keep out of reach of children.

 Label : FOR EXTERNAL USE ONLY 

Directions : To be applied on affected area. 

  

Category : Protective and mild keratolytic.

  

Shelf life : 4 weeks

    

                      

      

        

     https://www.youtube.com/watch?v=TLKCzkvkTqU

Preparation of method Lassar's paste