1. Anti-diabetics
Gymnema
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2. DEPARTMENT OF TECHNICAL EDUCATION ANDHRA PRADESH
Name : B. Janaki Ramayya
Designation : Sr. Lecturer
Branch : Pharmacy
Institute : GPW, Srikakulam
Year/Semester : I. D.Pharm
Subject : Pharmacognosy
Subject code : Ph-103
Topic : Anti-diabetics
Duration : 50 Mts
Sub-topic : Gymnema
Teaching Aids : Ppt, Photographs
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3. RECAP In the last class we learnt about : The Anti-diabetic monograph
Pterocarpus
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4. OBJECTIVES
On completion of this period you would be able to know about :
The monograph of Anti-diabetic drug
GYMNEMA SYLVESTRE
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5. GYMNEMA Synonym : Gudmar, Madhu nashini
Biological Source : Consists of leaves of
Gymnema sylvestre
Family :
Asclepiadaceae
Fig.46.1 Gymnema
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6. GYMNEMA Geographical Source : Mainly found in India.
Organoleptic Characters :
Colour : Green
Odour : Pleasant and aromatic
Taste : Tasteless
Fig.46.2 Gymnema
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7. GYMNEMA Organoleptic characters Size : 3-5 x1-2 cm
Shape : Elliptic or ovate with acute or
Acuminate apex
Fig.46.1 Gymnema
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8. GYMNEMA Chemical constituents: Hentriacontane Penatriacontane Ptylin
Alpha and beta Chlorophylls
Resin
Tartaric acid
Fig.46.4 Gymnema
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9. GYMNEMA Chemical Constituents : Formic acid Butyric acid Mucilage
Inositol
d-quircitol
Gymnemic acid
Anthraquinone derivates
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10. GYMNEMA Standards: Ash : not more than 11.5%(w/w)
Organic acids : not more than 5.5%(w/w)
Alcohol soluble extractives : not more than 12.0%(w/w)
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11. GYMNEMA Chemical tests:
Dilute solution anaesthetises sweet taste buds.
Shake the leaves with water
Copious foam which on addition of dilute Hydrochloric
acid forms voluminous precipitate.
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12. GYMNEMA Uses: Antidiabetic (stimulates Insulin secretion ) Stimulant
Stomachic
Laxative
Diuretic
Substitute : Gymnema hirsutum
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13. Summary In this class we learnt about : Gymnema sylvestre
Belongs to the family Asclepiadaceae
Used as Anti-Diabetic
Stimulates the secretion Of Insulin from pancreas.
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14. QUIZ Q 1. Gymnema belongs to the family b. Leguminosae c. Solanaceae
a. Scrophulariaceae
b. Leguminosae
c. Solanaceae
d. Asclepiadaceae
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15. QUIZ Q 2. Gymnema is used as b. Anti-septic c. Anti-diabetic
a. Anti-pyretic
b. Anti-septic
c. Anti-diabetic
d. Anti-viral
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16. Frequently asked Questions
1. Give an example for Anti-diabetic drug. Mention its
Biological source, Morphological characters and
Active constituents (Mar./Apr’ 2004 )
Give two examples for Anti-diabetics.
(March’ 2003 ) (December’ 2001)
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