The drug agency, the State Food and Drug Administration, said producers of the active ingredient in heparin must now obtain their raw material from registered suppliers, and it ordered the suppliers to strengthen their checks on the quality and safety of those raw ingredients.
active
a. principle — the drugs or chemicals in a pharmaceutical preparation that exert an effect pharmacologically; as distinct from the inert fillers, wetting agents and other excipients also often included.ive
active immunity 【免疫】能動免疫.
turn・about
The announcement, just hours after American officials said they had identified a contaminant in heparin from China, represents a turnabout for Chinese drug regulators. Previously, they had said they did not have oversight of large parts of the industry, and they had called on importing countries to take responsibility for ensuring heparin’s safety. China is the world’s largest supplier of the active ingredient in heparin.
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