English to Italian Medical Medical (general) Veterinaria

Volevo evitare di utilizzare il verbo "agire" due volte nella stessa frase (visto che c'è già "works" tradotto con questa parola):

How does Galliprant work?
Galliprant contains grapiprant, a non-steroidal, non-cyclooxygenase inhibiting anti-inflammatory drug (NSAID), of the piprant class, that works in a different way from other NSAIDs, which block a range of cyclo-oxygenase enzymes.
Grapiprant works by blocking a specific target receptor called EP4, through which natural substances called prostaglandins ** act to produce ** pain in osteoarthritis.