I was taking Forxiga 5 mg. I am on a pump and had to adjust the basal rate and my ratios down, but my overall blood sugar control didn’t improve all that much, I just had the same control using less insulin (and I did find that highs were easier to “turn around”). My endocrinologist said that SGLT2 inhibitors cause raised ketones, he didn’t mention anything about it being due to the pump versus MDI. He did say that one risk with these medications in people with Type 1 is that the insulin will be lowered so much that it’s below the baseline of what the body needs, and this will trigger DKA (he said he’d seen some really nasty cases of severe DKA with normal blood sugar while on call at the hospital). Before prescribing it for me, he went over exactly what I should do if I had high ketones, and there was once or twice where I did have high ketones and followed those instructions (basically drink lots of water, give extra insulin, and eat extra carbohydrates to get rid of them). I was eating a low-carb diet at the time I started, but I didn’t feel comfortable having ketones from the low-carb diet plus the SGLT2 inhibitor plus the risk of a pump failure. I felt that combination was too high risk, so I temporarily ate more carbohydrates. I would be interested in trying this class of medication again, but with the side effects I had (two yeast infections in six weeks), I’m not sure it would turn out any differently. I have wondered if maybe eating a low-carb diet while on the medication would help, because you’d be peeing out less glucose overall which is what caused the infections.