http://www.websters-online-dictionar...phylactic.html
SHOCK is the first response to rule out. Set him up with some needles-- including some placebos with saline or oil. Have him stick himself with them-- a little Russian Roulette with the real shot in last place will give you both peace of mind. If he tolerates the saline/oil shots OK you'll know to evaluate further.
People can be scared to death of needles. I once scared myself by injecting a 15cc bubble of gas oxygen into my right median cubital space venus bloodstream. My heart made some very unusual smacking noises that sounded like little kisses in my heart until the cavitation issue was resolved through tissue oxygen absorbtion. Felt really freakin strange, too. I was scared.
I have seen a person experience clinical death during a needle stick and one stroke-out -- take it seriously and remember to have FUN !!! the medic Ha ! Ha ! You're having some fun now ! I wish I was having as much fun now as you all are.