Hypotension (especially with rapid IV push); may be exacerbated by alcohol and other vasodilatory agents
Severe, potentially fatal, methemoglobinemia
Tachycardia
Headache
Facial flushing, dizziness, sweating
Nausea, vomiting
Sodium nitrite
Amyl nitrite
Methyl isocyanate
Nitrous oxide
Methylene blue
Sodium thiosulfate
Selenium sulfide
Dicyclomine