Alterations in consciousness may follow several hours later, which include impaired judgement and memory, confusion, somnolence and stupor.
en.wikipedia.org During childbirth, administration of methoxyflurane produces significantly better analgesia, less psychomotor agitation, and only slightly more somnolence than trichloroethylene.
en.wikipedia.org More severe forms of hepatic encephalopathy lead to a worsening level of consciousness, from lethargy to somnolence and eventually coma.
en.wikipedia.org Common initial symptoms include confusion, somnolence, generalized seizures, headaches, and vision impairment.
en.wikipedia.org Melatonin can cause somnolence (drowsiness), and, therefore, caution should be shown when driving, operating machinery, etc.
en.wikipedia.org