Changing from Lantus to Levemir

I used to have a split dosage of lantus, with my BGs normally around the 7 or 8 mark. Yesterday morning I switched to Levemir and have had loads of hypos since. There could be other reasons for the hypos (exercise, morning after drinking alcohol) but am I right in saying that because lantus takes two days to take any effect, and levemir works straight away, for the next two days ive effectively got 2 background insulins inside me? Can I expect my readings to calm down in a day or two? Any advice appreciated

Hi Davey-M, welcome to the forums.

Are you seeing any patterns in the timings of the hypos? If you have other factors to consider (like the exercise/alcohol) then it can make it very difficult to determine what is the cause of the hypos. If you have applied DAFNE rules to those things then this will help.

In case you don't already, be sure to make sure you're not hypoing over night by doing the 3am test.

Now, fact of the matter is, insulins can work differently for everyone (from the sounds of things, you've tried to do a bit a research). You may find that you're more sensitive to levemir compared to lantus and this may mean you'll need to start lower your doses.

If you wanted someone to compare to, I'm also on Levemir and I take a split of 15/15 (morn/even) currently... however, I know that this still isn't quite right for me yet (I hypo'd at 3am last night so planning to try 15/14 today). I used to hypo like crazy on lantus and it's why they suggested I change to levemir (on that note, I eventually learned that I'm fairly insulin sensitive generally - 1QA of humalog makes me drop my 6BG! - keep an eye out for this too perhaps?).

Best wishes with the change. I know it can be a difficult time but you'll get there.