| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| First isolated in 1910, this chemical released by the immune system can cause itching & swelling in an allergic reaction | histamine | $2,000 | DJ | HEALTH & MEDICINE | 2014-10-15 | #6918 | |
| Chemical found in nearly all your body's tissues; pollens may cause cells to release it | histamine | $1,000 | J | MEDICINE | 2002-11-04 | #4181 | |
| A group of synthetic drugs are "anti" this chemical produced during an allergic reaction | Histamine | $600 | DJ | HEALTH & MEDICINE | 1998-09-07 | #3216 |