A doctor prescribed a particular tablet for a patient who had covid. The patient had to take 4 tablets on the first day and 2 tablets for the subsequent 5 days. How much medicine in grams had this patient taken by the end of the dosage if each of the tablets weighed 0.025g
On the first day, the patient took 4 tablets, and each tablet weighed 0.025g. So the patient took 4 * 0.025g = <<4*0.025=0.1>>0.1g of medicine on the first day.
For the subsequent 5 days, the patient took 2 tablets per day. So the patient took a total of 5 * 2 = <<5*2=10>>10 tablets.
Each tablet weighed 0.025g, so the patient took 10 * 0.025g = <<10*0.025=0.25>>0.25g of medicine for the subsequent 5 days.
Therefore, by the end of the dosage, the patient had taken a total of 0.1g + 0.25g = <<0.1+0.25=0.35>>0.35g of medicine. Answer: \boxed{0.35}.