2317
Post-exposure prophylaxis of H1N1 with oseltamivir was safe, effective and well tolerated to prevent H1N1 influenza A virus infection in newly transplanted renal allograft recipient receiving triple immunosuppression without any interaction with tacrolimus level.
 potential therapeutic event: prophylaxis 
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: adverse event, potential therapeutic event 
Text: {0} 
Answer:
 potential therapeutic event: prophylaxis 