New Delhi, May 13 -- The Centre has tightened the rules for exports to check the wide abuse of medicines manufactured in India, three officials aware of the matter said. The guidelines are applicable to unapproved and approved new drugs for exports purpose only and manufacturers have to comply with the legal procedures, two officials aware of the matter said.

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With some of these drugs being used in overseas markets as narcotics, the Central Drugs Standard Control Organization (CDSCO) has introduced a two-step verification for the manufacturer that will be checked at Indian ports.

In addition, the apex drug regulator has made it mandatory for manufacturers to obtain regulatory app...