Hi @lizzie12 just wanted to clarify for others Famotidine is also known as Pepcid while Omeprazole is also known as Prilosec. I have had experience with both just like you! I actually am on Prolia due to the Fosamax GI issues. Happy to see you had successful Recast infusions because I will be ending Prolia soon with Recast and hoping like you I will not have significant side effects.