The drug of the present invention, and a method of manufacturing the drug are so arranged that a photosynthetic bacterium is incubated together with a lactic acid bacterium so as to cause the photosynthetic bacterium to produce a viscous material in a liquid medium, the photosynthetic bacterium being Rhodopseudomonas capsulatas FERMBP-7434 strain, and the lactic acid bacterium being Lactobacillus spp., and then a metabolic product, which is to be contained in the drug, is separated from the liquid medium. Health can be recovered by using the drug in such a small quality that is not hard on a user.