Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0027497 (nausea)
 23,468 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Dilantin toxicity has been well described and has generally been noted to include signs and symptoms of nystagmus, ataxia, nausea, and vomiting. Dilantin's depressive effects are seldom mentioned. Two patients are presented who, although stable while on the rehabilitation unit, developed vegetative signs of depression soon after discharge. Both were found to have toxic levels of Dilantin. Neither revealed the classic neurologic or gastrointestinal complaints. Although one patient had documented family and social stressors, the other had a stable home life. Both patients recovered remarkably once their Dilantin dosages were adjusted. In such patients who present with change in mood, sleeping, and eating patterns, Dilantin toxicity should be suspected. Serum blood levels should be checked, and dosage adjusted before the addition of antidepressant medication. Possible causes for Dilantin-associated depression are discussed in detail.
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PMID:Dilantin toxicity and vegetative depression: a report of two cases. 224 39

Phenytoin sodium was evaluated for its effect on the development and intensity of acute mountain sickness (AMS) because of its ability to reduce intracellular Na+ concentrations in brain and thereby minimize any tendency to increase cellular volume, a hypothetical cause of AMS. Six men aged 19-35 were exposed to approximately 4600 m altitude in a hypobaric chamber for 52 h on two occasions separated by 10 d at sea level. Subjects received wither phenytoin or placebo for 18 h before (700 mg, divided dose) and throughout (100 mg t.i.d.) each altitude exposure in a double-blind, repeated-measures (crossover) design. Phenytoin serum concentrations ranged from 4.4-13.9 micrograms/ml during altitude exposure. Twice daily questionnaires and clinical evaluations showed no marked benefit from phenytoin on the occurrence, severity, or duration of AMS symptoms: headache, nausea, insomnia, and general malaise. Overall, 1 subject felt better, 2 felt worse, 1 felt the same; 2 were not suitably comparable. There was no observed relationship between serum levels and symptoms of AMS. Moderate degrees of weakness and dizziness were each reported by 3 subjects with phenytoin but not with placebo, however. Resting pulmonary ventilation, end-tidal PO2 and PCO2, map reading abilities and respiratory mask donning times were not affected by phenytoin. Under the conditions of this trial, phenytoin did not appear to be useful in managing AMS.
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PMID:Phenytoin: ineffective against acute mountain sickness. 676 69