doser

"To dose out" or "to gauge/calibrate" — measuring quantities precisely (doser les ingrédients, doser un médicament) and, figuratively, getting the balance of an effort or a tone just right (savoir doser ses critiques).

• Il faut bien doser le sel dans cette recette. — You need to measure out the salt carefully in this recipe.
• Elle sait doser ses compliments sans en faire trop. — She knows how to calibrate her compliments without overdoing it.
• Le pharmacien a dosé soigneusement le médicament. — The pharmacist carefully measured out the medication.

A regular -er verb with no irregularities, but learners often reach for mesurer when doser's specific sense of getting the proportion or balance right — not just measuring a quantity — is what's meant.