As prescribed by your doctor Amlopress-AT has Amlodepin & Atenolol
your BP is now under control .So you can continue it .BP medicines are to be taken lifelong & Atenolol is a cardioselective beta1 blocker and it has been one of the most prescribed &well tolerated drug worldwide.Generally there is no side effect but occassionally it hasfew like parasthesia; bronchospasm
;fatigue;headache ;occassional swelling of ankles which is not a disease.But even Losartan
can cause headache;dizziness;skin rash;asthenia that is almost similar to Atenolol.So i would suggest you to continue the prescribed medicine.Please understand that each & every medicine has some side effect but they are seen in very very small number of patients.secondly studies of medicines go on & on but remember there are millions of patients taking Atenolol & till date there is no documented case of diabetes;even people having diabetes with hypertension
are taking it.so please don't worry ;if any more questions you have please feel free to ask.