There is something special about this medicine. The simplest energy medicine is 1 energy grasshopper or 1 energy unicorn+1 monster material. Moreover, only two energy unicorns+1 any monster material are needed to make the medicine of "recovering three circles of energy". However, unicorns with energy are rare. I suggest you catch it in the woods south of Wattley village. If you are lucky, you can catch many other insects.
The Legend of Zelda
The official name of the Japanese version is Fantasy of Heraru: the legend of zelda, but most players omit the subtitles, and the American version has no subtitles. This game was initiated by the legend of zelda, which created the game type of ARPG and effectively promoted the promotion of FDS. There is no FDS sold in Europe and America, only cassette version, and the sales volume is the sum of FDS version and cassette version.
When the Japanese FC version was released, its name was changed to "ゼルダのヵヵヵ 1", and the subtitle "Fantasy of Heraru" was no longer used.