Been cahnged from linogliptin 5mg to alogliptin 12.5 because it is cheaper but have been testing religiously to check the effect and my bg has doubled have given it a chance as have been on it 2 weeks now and feel awful, irritable and tired. Have been on the same meds for about 8 years never had a bg over 10 now they are up to 18 and never lower than 6. Due to go the diabetic nurse on monday so had HBA1C done last week but not sure the new drugs will have affected it yet which could be a problem