My dad takes atenelol for high blood pressure. He insists on being in control of taking all his meds without assistance, which he really needs. He says that if he feels his blood pressure is higher than it should be, he simply takes more atenelol. Yikes!! Couldn't there be a problem with overdosing on a drug such as atenelol. He also takes Paxil, and I really worry that he is using the same logic (?) to determine dosage on that drug as well.