Best Reported Allergies:

Nitrous oxide - "Makes me light-headed"
Novocaine - "Makes me numb"
Novocaine - "When it wore off I had a lot of pain"
Bleach - "When I inhale it, have resp. distress"
Epinephrine - "makes my heart race"
Poison Ivy - "gives me a rash"
Erythromycin - "N/V"

Dextrose-- causes SOB
Diprovan-- "lose consciousness"
paper tape-- causes tachycardia
codeine-"makes me constipated and vomit"

Cortisone - "gives me hives"
Morphine - "makes me sleepy"

Ampicillin -- "gives me a yeast infection"
Cortisone/prednisone -- "makes me puffy"

"I can only take brand name drugs, I get a rash from any generics"

"Allergic to oxygen"
"Allergic to water"

"allergic to all painkillers except Demerol"
"I'm allergic to demerol, codeine, Morphine and 2mg Dilaudid. But I can take 4mg Dilaudid."
Allergic to : non-narcotic pain relievers
"I'm allergic to all painkillers except one. I think its called 'perc-a-something' but I really don't remember the exact name".
"Doc, I'm allergic to 50 milligrams of Demerol but 100 mg doesn't hurt me at all."