Which of the following is considered an irritant?

• A. Pepper Spray
• B. BZ
• C. Botulinum
• D. Ricin

Answer: (A)

An irritant is a chemical that causes immediate, local inflammation and discomfort of the eyes, nose, throat, and skin without causing widespread poisoning. Pepper spray fits this role because it contains capsaicin, which irritates mucous membranes in the eyes and airways, producing burning, tearing, coughing, and a strong urge to rub or wipe the face. The effects are rapid but primarily local and temporary, which is characteristic of irritants used for crowd control. In contrast, BZ is a hallucinogen that disrupts perception and cognition, while botulinum toxin and ricin are potent toxins that cause systemic harm—paralysis or inhibition of protein synthesis—rather than simple local irritation. Thus, pepper spray is the irritant.