One study in sexually mature rats given 70mg/kg bodyweight Kaempferia parviflora daily noted that supplementation was able to increase mounting frequency and reduce ejaculatory latency (indicative of aphrodisiac effects) and was nonsignificantly additive with exercise; post ejaculatory latency was seemingly unaffected. This has been replciated elsewhere, but the hexane and aqueous extracts were ineffective at decreasing mounting and ejaculatory latency. Interestingly, one study using a higher dose (240mg/kg) noted inhibitory effects on aphrodisia in rats and one using 1g/kg noted no significant differences between groups.