Question

what do you mean by chemotherapy​

Answer 1

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$\to$Chemotherapy is a drug treatment that uses powerful chemicals to kill fast-growing cells in your body. Chemotherapy is most often used to treat cancer, since cancer cells grow and multiply much more quickly than most cells in the body.

Answer 2

Answer:

Chemotheraphy is a phonemenon in which organic compounds with definite structure are used for the treatment of certain diseases by destroying the invading organism without damaging the cells of the host.

In this the requirement of an ideal drug is that on administration to the host, It should be localised at the site where it is required and it tends to distribute itself and everywhere in the tissue of the host.

Another difficulty is that the cells where we originally susceptible to a particular drug, may acquire a tolerance to that drug.

In some cases it has been found that the drug actually reverses its original action the major advance in the field of chemotherapy is the discovery of Sulpha-drugs antimalarial and antibiotics