Primary Sjögren's syndrome treated with Efamol/Efavit. A double-blind cross-over investigation.

Thirty-six patients with primary Sjögren's syndrome participated in a randomised double-blind, cross-over, 3-week, study to compare the effect of Efamol (1500 mg X 2) with that of placebo. Efamol contains 9% of the prostaglandin-E1 precursor gamma-linolenic acid, which is presumed to occur in reduced levels in Sjögren's syndrome. Efamol treatment improved the Schirmer-I-test (P less than 0.03) while values of break-up time,-van Bijsterveld score, corneasensitivity, tear-lysozyme and nuclear chromatin in conjunctival epithelial cells did not reach the statistical 0.05 level.