Filitra 10 contains vardenafil 10 mg, it generally does not significantly raise or lower blood sugar. Vardenafil is a PDE-5 inhibitor for erectile dysfunction, not a glucose-lowering medicine. Clinical studies in men with diabetes found it effective and generally well tolerated, including Filitra 10 different levels of blood-glucose control. P PubMed +1 The prescribing information also reports that vardenafil did not affect the glucose or insulin effects of glyburide in an interaction study. D DailyMed So, if you're noticing an unusual blood-sugar reading after taking Filitra 10, don't assume the tablet is necessarily responsible—food, alcohol, diabetes medicines, exercise, stress, and timing can all affect glucose. If you tell me whether you have diabetes and what diabetes medicine(s) you take, I can check for any specific interaction with Filitra 10.