Maintain blood pressure, airway, and give oxygen if respiration is depressed. Get medical attention. No specific antidote. Treat symptomatically and supportively. Stable under normal temperatures and pressures.
Thermal decomposition releases flammable vapor and toxic gases.
Hazardous polymerization has not been reported to occur under normal temperatures and pressures. Avoid contact with strong oxidizers, excessive heat, sparks, or open flame. Sweep up and place in suitable clean, dry containers for reclamation or later disposal. Do not flush spilled material into sewer. Keep unnecessary people away.