The most common negative side effects of nitric oxide include dizziness, blurred vision, confusion, weakness and sweating, notes Drugs.com. The inhaled substance may also cause tightness or discomfort in the chest, difficulty breathing, dry throat and headache.
Patients inhaling nitric oxide may feel light headed, faint or dizzy when they suddenly rise from a lying or sitting position, as stated by Drugs.com. A patient who is experiencing side effects should notify a nurse or doctor at once as they may require medical attention. Although dry throat and headache generally do not require medical attention as they often disappear as the body gets used to the medication, patients should still check with a health care professional if they are concerned or if the side effects persist.
Nitric oxide may cause hypotension, blood in the urine, hyperglycemia and hematological effects such as methemoglobinemia, according to Drugs.com. Cellulitis, infection and sepsis have also been reported. When given to infants, nitric oxide can cause noisy breathing or a collapsed lung, and it is possible for the baby to experience breathing problems even after ending nitric oxide treatment. The controlled medical setting in which a baby receives nitric oxide means overdose is unlikely, and expected side effects are not life-threatening even if they do occur.