<s>[INST] Is there a difference between Stamlo and Stamlo Beta ? WHich one should be taken for hypertension. My BP is typically 135/90. I am a Male aged 41 in India. Reasonably active. Sarted Yoga 2 months ago. Also run jog 5km twice a week. (I had a few episodes of fast heart beat about a year ago. Went through the TMT/Stress echo/Halter/ECG etc - all was relatively normal. symptoms went away and have not recurred.) My question is more to do with BP but am just providing a background for you. Thank you. [/INST] Hi, Stamlo contains medicine amlodipine which is a calcium channel blocker commonly prescribed to treat high BP. Whereas stamlo-beta is a combination of amlodipine and a beta receptor blocker atenolol. Atenolol is helpful in controlling the BP as well as irregular or faster heartbeats hence your doctor has prescribed it. Continue taking it as prescribed. Hope I have answered your question. Let me know if I can assist you further.  </s>