From J.L. Châtelain Laboratories.
Totally vintage rectangular shaped bottle with its original cap and embossed inscriptions on the sides. Nice rounded shoulders.
Was probably a bottle of Globeol, Jubol or Urodonal, 3 delicious remedies with amazing recipes, as this article specifies (in French).
Dimensions: total height of 24 cm x length of 10 cm x width of 5 cm.