1. Laxatives
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2. Objectives On completion of this period, you would be able to know :
Definition,
Classification and
Uses of
Laxatives.
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3. Known to Unknown Have you come to know Milk of Magnesia ?
Is it Laxative (or) Purgative ?
Can you name some Purgatives & Laxatives in Pharmacognosy ?
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4. Laxatives Definition : Laxatives : Latin : laxare : to loosen
Drugs which loose the bowels (intestines) or
Drugs which producing, increasing and hastening intestinal evacuation
Drugs which promote defecation
(Push out the excreta from the body through the Anus)
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5. Laxatives Classification :
Depending upon the intensities of drug effect they
are classified as :
Laxatives : Eliminate the soft formed stools
also known as Mild Purgatives.
e.g.
Karaya gum Senna
Carboxy methyl cellulose Isapgol
Liquid-paraffin Bran
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6. Laxatives Purgatives : fluid evacuation e.g. Castor oil Aloe
Cascara sagrada
Rhubarb
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7. Laxatives
Drastics : Act intensely by irritating the mucous membrane of the intestine.
e.g. Jalap
Colocynth
Podophyllum
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8. Laxatives Hydrogogues : Produce fluid motion e.g. Croton oil Colocynth
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9. Laxatives Mechanism of action : Bulk forming Irritant or Emmollient
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10. Laxatives Uses : In constipation
In evacuation of bowls , prior to diagnostic procedure or surgery.
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11. Summary In this class, we have discussed about:
Laxatives are the drugs which loose the bowels or the drugs producing, increasing and hastening the intestinal evacuation
Used in the constipation and in
Evacuation of the bowels, prior to
Diagnostic procedures or surgery.
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12. Quiz Laxatives used in Constipation Diarrhoea Dysentery Diabetes
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13. Quiz 2. Identify the drug which is used as laxative Castor oil Senna
Rhubarb
All the above
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14. Frequently Asked Questions
Define the term laxative?
Classify them with suitable examples
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