My sister picked up new insulin from the pharmacist only it was novolin r and not novolin h. Not knowingly she has been giving my dog 8.5 units of this novolin r. We have noticed and went back on her reg insulin the next day after consulting her doctor. What wasnt asked or volunteered, is if the amount of novolin r she was taking was a dangerous level for her size, approx 19 lbs. Can anyone tell me if the difference in insulin types other than r being fast acting, im concerned more about strength difference per unit.

thank you