Lotions

• Lotion

  • liquid suspension or dispersion intended for external application to the body
  • applied without friction (smooth when applied on the skin)
  • insoluble matter are finely divided as particles approaching colloidal dimension are more soothing to inflamed areas and are more effective in contact with the infected area
  • preferred over semi-solid preparation because of non-greasy character and their increased spreadability over large areas of skin
• Methods of Preparation:

  • Triturating the ingredient to a smooth paste
  • By chemical interaction in the liquid
  • Clear solution
• Methods of Preparation: Triturating the ingredient to a smooth paste

  • triturating the ingredient to a smooth paste and then cautiously adding the remaining liquid phase (with the use of high-speed mixers and homogenizers)
  • eg. calamine lotion - consist of finely divided insoluble solids held in more or less permanent suspension by the presence of suspending agents or surface active agent
• Methods of Preparation: By Chemical Interaction in the Liquid

  • eg. White lotion - must be freely prepared and does not contain suspending agent
  • chemical formula to prepare white lotion: ZnSO4 + sulfurated potash (K2S3) -> ZnS + 2S + K2SO4
• Methods of Preparation: Clear Solution

  • in which the active ingredient is a water-soluble substance
  • eg. dimethisoquin hydrochloride lotion
• Calamine Lotion

  Category: Medicated suspension
• Calamine Lotion

  Synonym: Lotio Calaminae
• Calamine Lotion

  Description of Final Product: liquid suspension or dispersion that is pink in color
• Calamine Lotion

  Uses: this is employed chiefly as an astringent (gentle astringent), antipruritic, topical protectant and soothing lotion for sunburn, treatment for ivy poisoning, also eczema, often prescribed by dermatologist to give opacity and a flesh like color to lotions, skin protectant
• Eczema - usually treated with hydrocortisone, cortisone or steroid; since some people can't tolerate cortisones dahil medyo matapang siya, calamine may be used instead
• Calamine Lotion

  Label: Red Label
• Calamine Lotion

  Container: 30 mL amber bottle
• Calamine Lotion

  Method of Preparation: Trituration