<s>[INST] I have taken a statin, losartan and aspirin for 20 years due to a silent myocardial infarction my ECG showed in the early 1990s. I have now been prescribed bisoprolol 1.25mg after visiting local hospital for cardiac check. What are the possible side effects of losartan and bisoprolol. [/INST] Hi, Losartan is an angiotensin receptor blocker commonly prescribed to treat high blood pressure. Its common side effects include low blood pressure, high blood potassium levels, and sometimes Chat Doctor. Bisoprolol is a heart-selective beta blocker commonly prescribe to treat high blood pressure and other conditions. Its common side effects include low heart beats, cold and clammy extremities, fatigue, erectile dysfunction, difficulty in breathing in susceptible individuals, and disturbed sleep. Hope I have answered your question. Let me know if I can assist you further.  </s>