Signs of hypervitaminosis A could appear in cases of accidental overdose. Evacuation of the stomach may be indicated in the first few hours after overdosage. The symptoms have been abdominal pain, dizziness, intracranial pressure, headache, severe, nausea, vomiting, irritability, itchy skin.
Treatment of overdose: To decrease absorption - Evacuation of stomach should be considered within 2 hours of ingestion of acute overdose. Medication should be discontinued in patients with symptoms of overdose who were given therapeutic doses.
Monitoring: Monitor for increased intracranial pressure.
Female patients of childbearing potential should have a pregnancy test at time of overdose and 1 month later; if positive, teratogenic risk and continuance of pregnancy should be discussed.
Blood samples should be collected and isotretinoin and metabolite concentrations determined.