I suspect my elderly 90 years old mother might be having side effects from Doxazosin. She is adamant that she must take them because she is scared of having a heart attack. Low BP, dizziness and abdo pain are symptoms that i think may be related to this drug. Her cocktail of drugs including Clopidogrel, Perindropril, Lyrica after she had a small TIA are worrying me, and add to that Morphine patch for backache and Zopiclone for her to sleep. Yes, she is 90 but this previously quite vibrant lady is tired all the time now, and I mean tired. She can hardly cope with anything. Drugs ? TIA ? I am her daughter and worried about her. Thank you for any advice. Just seen its not free so goodbye!