Such patients may suffer agitation, delirium, headache, convulsions, and/or hyperthermia.
en.wikipedia.org It is a highly selective agonist for the -opioid receptor, which produces fewer convulsions than most drugs from this family.
en.wikipedia.org However, evidence from non-fatal oxygen convulsions indicates that most convulsions are not preceded by any warning symptoms at all.
en.wikipedia.org But everything from jaundice, convulsions, and colic to bad luck and evil spells can apparently be alleviated by a bit of blowing.
en.wikipedia.org It produces symptoms of irritability, disorientation, lethargy, muscle spasms, vomiting, abdominal cramps, convulsions, and seizures.
en.wikipedia.org