Definition of long-acting in English:

long-acting

Syllabification: long-act·ing

adjective

  • (Chiefly of a drug) having effects that last for a long time.
    More example sentences
    • Despite her use of the long-acting drug preparation, she reported that the carbidopa-levodopa effect wore off after 3 to 4 hours.
    • A single injection of a long-acting steroid such as triamcinolone (eg Kenalog) can bring symptoms under control quickly.
    • The AAP does not recommend routine use of pemoline, a long-acting stimulant, because of rare but potentially fatal hepatotoxicity.

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