Lumbar myelography with Omnipaque (iohexol).

Lumbar myelography with iohexol (Omnipaque) was performed in 103 consecutive adult patients with low back pain or sciatica. The patients were observed for 48 h with registration of possible adverse reactions. Mild or moderate transient side effects were recorded in 24 patients. No serious adverse reactions were noted, and EEG recorded in 25 patients showed no changes.