C. Reisser et H. Weidauer, Ginkgo biloba extract EGb 761 (R) or pentoxifylline for the treatment of sudden deafness: A randomized, reference-controlled, double-blind study, ACT OTO-LAR, 121(5), 2001, pp. 579-584
In a randomized, prospective, double-blind study involving 72 patients, the
therapeutic efficacy of ginkgo extract EGb 761(R) (n = 37) was compared to
that of pentoxifylline (n = 35) for the treatment of sudden deafness. The
two therapeutic schedules were equally well tolerated and showed a statisti
cally significant equivalence in improvement or in return to normal of the
auditory thresholds in the two patient groups. Furthermore, no differences
were found between the treatment groups with regard to the criteria for a r
eturn to normal of speech discrimination and reduction of the tinnitus whic
h arose at the same time as the sudden hearing loss. The patient's subjecti
ve assessment of the treatment with regard to improvement in hearing and re
duction in tinnitus suggested that Ginkgo biloba extract was more beneficia
l than pentoxifylline. In summary, it was shown that treatment of sudden de
afness with ginkgo special extract EGb 761 was as effective as treatment wi
th pentoxifylline.