Hi All, Just a quick question - I'm new to the forum so excuse me if I don't have the etiquette quite right yet. I'm type 1 diabetic on novorapid and lantus, I've been prescribed Erythromycin by my doctor and for the two days I've been taking them have suffered really bad hypos with the onset coming on very quickly. Monday night was 1.6, I assumed that it was the lantus not acting as it should but I kept my sugar higher last night and it still dropped dramatically very quickly before taking lantus, so can't possibly be that. Has anyone else had a similar experience? Any advice would be greatly appreciated as I need rid of this chest infection but this is causing quite a bit of worry. Thanks a million. Spiritus.