Define Menstrum and Marc. Write the advantages of alcohol as menstrum.

Define Menstrum and Marc. Write the advantages of alcohol as menstrum.
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1 Answer

Answer :

Menstrum :-Solvent used to extract the drug.

Marc:-The drug residue which remains behind after extraction.

Advantages of alcohol as menstrum  

i) The mould and bacteria cannot grow in an alcoholic solution (20% or more).

ii) It is neutral and hence extraction products obtained are compatible with other products.

iii) It is non-toxic in the concentration mostly present in the preparations.

iv) A small amount of heat is required to concentrate the alcoholic preparations.

v) It dissolves selective active ingredients of drugs.
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