Collection : musée Fragonard de l'École nationale vétérinaire de Maisons-Alfort / Photo Olivier Jourdanet / MCC

The Pravaz syringe, early 20th century

Injections were mainly developed in the 20th century, at a time when the active pharmaceutical ingredients became more and more concentrated and could be measured very precisely. The injection gradually replaced less effective and imprecise oral forms.