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Screening method for anti-inflammatory drug is

Frog plexus method

Rat Paw oedema method

Writhing method

intradermal wheel method

In writhing method, he painful stimulus can be induced by

Carrgenin

Heat

HCL

Acetic acid

T or F

 Characteristics of medullary stimulant drug is Opisthatenous posture F 

Writhing method is utilized to evaluate the analgesic activity of morphine F