Final answer:
Protamine sulfate is the heparin reversal agent for toxicity.
Step-by-step explanation:
The heparin reversal agent for toxicity is Protamine sulfate. Protamine sulfate is a medication that can be used to reverse the effects of heparin in the body. It works by binding to heparin and neutralizing its anticoagulant properties. This can be important in cases where heparin overdose or toxicity occurs, or when there is a need to quickly reverse the effects of heparin before a surgical procedure.