The phrase "to adjust the dosage" means to change the amount of medicine or a substance that someone takes in order to receive the right amount for their condition. Full definition
It may take several weeks of adjusting the dosage of insulin, as well as several glucose curves to establish the correct dosage for your dog. (professorshouse.com)
Adjust the dosage as necessary according to your body's response and your individual circumstances. (herbazest.com)
You should start with the directions on the bottle and adjust your dosage from there. (thyroidpharmacist.com)