The patient suffered an adverse 'response' to the medication. [=the patient became worse after taking the medication]
When I told him my plan, I wasn't expecting such an enthusiastic 'response'.
She asked him but he 'gave/made no response'. [=he did not answer]
(..) You afraid? No, but-- Shh. Oh, good. Me neither. 'Cause there's nothin' wrong with bein' afraid. Fear's a sensible response to an unfamiliar situation. Unfamiliar dangerous situation, I might add. With a dragon that breathes fiire and eats knights and breathes fiire, (..)2001 Shrek