I take 40 mg of lisinopril in the morning and atenelol at night. i accidentally took another lisinopril tonight as well as the atenelol. is that a problem?

Should be ok, if you have a BP cuff can check a few readings just in case, but would not expect much in the way of low BP’s

80 mgs of lisinopril and doubling the dose of atenolol could be problematic in lowering your BP and heart rate excessively. Lightheadedness and weakness would be signs of this. If BP drops below 100 or heart rate be!ow 50, I would proceed to the hospital emergency room for evaluation and observation.