Atenolol (Tenormin) can be taken with or without food. As with all beta blockers, atenolol (Tenormin) can make you feel dizzy for a few days after first starting it or changing the dose. When changing positions (going from sitting to standing or from lying down to sitting up), do so slowly. Atenolol is effective for at least 24 hours after a single oral dose. The drug facilitates compliance by its acceptability to patients and simplicity of dosing. The narrow dose range and early patient response ensure that the effect of the drug in individual patients is quickly demonstrated. Atenolol is compatible with diuretics, other hypotensive agents and antianginals (see section 4.5. He cut the dose in half for 2 weeks and then said I should continue with full dose. I'm not going to do it because of previous experience. I'm also getting heart palpitations due to an irregular heart beat and alot of stress. People have told me to take coq10 which will help everything but there are so many brands on the market and I don't know what would be the best dose. I'm 78 and have been. Indications, dose, contra-indications, side-effects, interactions, cautions, warnings and other safety information for ATENOLOL. Losartan: uses, dose, warnings, side effects We explain everything you need to know about taking losartan for high blood pressure, diabetic kidney disease or heart failure A reduction in the atenolol dose may be necessary. Insulin Degludec; Liraglutide: (Moderate) Increased frequency of blood glucose monitoring may be required when a beta blocker is given with antidiabetic agents. Since beta blockers inhibit the release of catecholamines, these medications may hide symptoms of hypoglycemia such as tremor, tachycardia, and blood pressure changes. Other symptoms. Atenolol has been shown to produce a dose related increase in embryo/ foetal resorptions in rats at doses equal to or greater than 50 mg/kg. Although similar effects were not seen in rabbits, the compound was not evaluated in rabbits at doses above 25 mg/kg. There is significant accumulation of atenolol in breast milk. Neonates born to mothers who are receiving atenolol at parturition or. Initial dose: Consider reducing the starting dose to 25 mg orally once a day. Renal Dose Adjustments. Creatinine clearance 15 to 35 mL/min: Maximum dose is 50 mg per day Creatinine clearance less than 15 mL/min: Maximum dose is 25 mg per day Hypertension:-Initial dose: Consider reducing the starting dose to 25 mg orally once a day Atenolol (Tenormin) is used to treat high blood pressure and angina, and to reduce heart attack risk. Learn about its side effects, dosage, uses, and more. Your doctor will probably decrease your dose gradually. Why is this medication prescribed? Atenolol is used alone or in combination with other medications to treat high blood pressure. It also is used to prevent angina (chest pain) and improve survival after a heart attack. Atenolol is in a class of medications called beta blockers. It works by relaxing blood vessels and slowing heart rate to.