I bet you thought batteries were for I-phones, I-pads, cameras, cat toys, ect. I thought the same until I saw this medication list:
med list

I noted they didn’t even give the size, and other factors come to mind: AAA would probably be the easiest to swallow. I can’t see someone handling a D cell. Since alkaline are specified, are they better than carbon? What is the proposed benefit? How about side effects? I can tell you, I’m not thrilled with this therapy.