Ranitidine
"I am taking prescription Zantac 150 and not sure if there's a difference to the over the counter one but I love this medication. I had missed a week of work from throwing up every little thing even a sip of water and would be stuck there for over 30 minutes and had previously been sick almost every morning and occasionally during the day but always felt nausea and heartburn. Have taken Zantac 150 with prescription meclizine 25 mg and was feeling better the next day. I still get sick from time to time and feel like I lose a weeks worth of food but isn't everyday and nausea and heartburn got less aggressive. Haven't had any side effects.  Totally recommend to anyone having stomach issues."