1. serving as or having the properties of an antidote; counteracting poison or disease

Examples

• The doctor prescribed an antidotal treatment for the snake bite.
• Activated charcoal has antidotal properties against certain poisons.
• The antidotal effects of the medication were immediate.
• Researchers are studying the antidotal value of various herbs.
• The emergency room keeps antidotal drugs on hand for overdose cases.
• Some foods have antidotal qualities that help neutralize toxins.