The effects of 3-N,N-dimethylaminopropyl farnesyl acetate (DMFA), N'-geranylpiperazinyl farnesyl acetamide (GPFA) and N'-methylpiperazinyl geranylgeranyl acetamide (MPGA) were studied on gastric secretion, gastric bleeding and gastric mucosubstances in rats. DMFA lowered gastric juice and gastric