Image: 4 panels organized in a rectangle following a sequential order like a comic strip. The first panel is of a man with a very serious face stating, "Hey man, got any diphenhydramine?" The second panel is a grainy picture of the actor Robert Downey Jr. with a slightly inquisitive face and saying, "What's that?" The third panel is an identical copy of the first image and saying, "Benadryl the allergy medicine." The fourth and final panel is a grainy picture of Bobby rolling his eyes and taking a deep breath.
Edit: Tony Start -> Robert Downey Jr. I didn't know that Tony Stark was a character Robert Downey Jr. played ๐คฆโโ๏ธ
I use the American brand names when talking about meds on the internet.
I've never taken trade-name Tylenol, Benadryl, Advil (without pseudoephedrine), Xanax, Effexor, Prozac nor Klonopin.
But those are the names I'd use when discussing them to "blend in". If I start talking about panado or rivotril I may cause confusion. The API names are also just a fucking mouthful.
As a non-American, I have never heard any of those "trade-names" and wouldn't know what you're talking about.