| ANTIDOTES | Drugs that counteract or neutralise the effects of poisons (9) |
| ANTIDOTE | A drug that counteracts or neutralises the effects of a poison (8) |
| ITCHINTIME | Eventually feel the effects of poison ivy? |
| ANTIHISTAMINE | A drug that neutralises the effects of allergic reactions (13) |
| TEMPER | Hardness of metal; one's mood; lime to neutralise the acidity of cane juice; or, a fit of ill-humour (6) |
| DEFUSE | Neutralise the detonator reported (6) |
| COUNTERACTS | Neutralises the computer laws (11) |
| ANTIVIRAL | Drugs that inhibit the growth of viruses (9) |
| ANTIVENIN | Substance that counteracts snake poison (9) |
| SPEEDBUMP | Couple of examples of local drugs that will slow you down (5,4) |
| ROUNDTRIP | Frank experience of drugs that leaves you where you started |
| NARCOTICS | Drugs that relieve pain and induce drowsiness, stupor, etc (9) |
| ANTITOXIN | A new bird, round before ten inside, with something to neutralise poison (9) |
| ATLEISURE | Free to neutralise leader fleeing in disgrace (2,7) |
| CANCELOUT | Neutralise (6,3) |
| NIGELLA | Genus of the devil-in-a-bush or love-in-a-mist that shares its family with the buttercup, granny's bonnet, larkspur and queen of poisons (7) |
| ARSENIC | Based on Persian for "gold", a toxic element with compounds including orpiment, or king's yellow as a pigment, once used as an untraceable of murder known as the king of poisons or poison of kings (7) |
| ACONITUM | Genus of the monkshood, queen of poisons or wolfsbane (8) |
| TOXICOLOGY | Branch of science concerned with the nature, effects and antidotes of poisons (10) |
| ANTIOXIDANT | Substance such as vitamin C or vitamin E, that counteracts the damaging effects of certain chemical reactions in a living organism (11) |
