Lecithin is used as a surfactant in many pharmaceutical formulations. Choose the correct statement.Question 12Answera.It is used in parenteral formulations as it is non-toxic.b.None of the statements are correct.c.It is used as a surfactant to produce pharmaceutical w/o emulsions.d.Lecithin is a naturally occurring non-ionic surfactant.e.It consist mainly of phosphatidylserine.
Question
Lecithin is used as a surfactant in many pharmaceutical formulations. Choose the correct statement.Question 12Answera.It is used in parenteral formulations as it is non-toxic.b.None of the statements are correct.c.It is used as a surfactant to produce pharmaceutical w/o emulsions.d.Lecithin is a naturally occurring non-ionic surfactant.e.It consist mainly of phosphatidylserine.
Solution
The correct statement is c. "It is used as a surfactant to produce pharmaceutical w/o emulsions."
Lecithin is a phospholipid, a type of fat that is a major component of all cell membranes. It is used in pharmaceutical formulations as a surfactant, which is a substance that reduces the surface tension of a liquid, allowing it to spread out or to penetrate other substances more easily. In the case of pharmaceuticals, lecithin is used to create water-in-oil (w/o) emulsions, which are mixtures of two or more liquids that are normally immiscible (unmixable or unblendable). This is important in the formulation of certain types of drugs, as it can improve the delivery of the active ingredient.
Similar Questions
Choose the correct answer (A-D). Parenteral emulsion formulationsQuestion 13Answera.Use non-ionic emulsifying agentsb.Are generally water in oil emulsionsc.Usually a purified vegetable oil is used in the oily phased.All of the answers are correct
Choose the correct answer (A to D). Oil-soluble surfactantsQuestion 3Answera.None of the answers are correctb.Have a high HLB valuec.They can used to stabilise both oil-water and water-oil emulsions.d.They are always the main component in an oil-water emulsifying mixture
Choose the correct answer (A to E). Many natural products used in pharmaceutical emulsions contain emulsifiers. Which one of the following natural products does not contain emulsifier(s)?Question 10Answera.All of the answers are correctb.Wool Fatc.Purified sunflower oild.Beeswaxe.Lanolin
ith regard to the following formula , __________ surfactant is the emulsifying agent .IngredientsMaster FormulaScaled formula (50 g)Yellow beeswax5 g Liquid paraffin15 g Borax (sodium borate)2.5 g Water4.75 g Question 6AnswerCationic Bentonite Nonionic Anionic Natural
Select all that applyWhich of the following statements correctly describe glycerol? Select all that apply.Multiple select question.Glycerol is a diol.Glycerol is used in lotions and shaving cream.Glycerol readily hydrogen bonds with water.Glycerol is extremely toxic because of the oxidation products formed when it is metabolized by the liver.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.