This pill is small (approx 1/8th ") and square. It has a capital A on one side only - script looks like 'Times New Roman' type. I took them to a Walgreen's pharmacist this morning. She was not able to identify out of her database. What is this drug? I found them in the back of my boyfriend's drawer hidden in an envelope with no prescription label associated. I recently found out about his substance abuse problem. I figure that this medication is either opioid or ED related.