What is antifertility drugs

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About Antifertility drugs
   
        These drugs are used to control birth and population , hence also called as control pills  . These contain a mixture of synthetic estrogens and progesterone derivative 

Example :-  Norethindrone and Ethynylestradiol are widely used as Antifertility drugs

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Siemens Ozoniser how Siemens Ozoniser work

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F - block element What are f - block elements

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