My pharmacy filled my prescription of amlodipine and benazepril with medication from a mfg.never used before. Taking 1 capsule as directed I started itching,throat,eyes ears and body, plus a very slow pulse of 40 or less. My heart was beating so hard it felt like is was coming out of my chest. I have taken this drug for several years first as Lotrel and then the generic brand. My pharmacist thinks I had an allergic reaction to the fillers used in the capsule. Can this be possible