Getting Prescription Medicines ?

That looks like a fairly common medicine for standard pharmacy’s, I’m surprised you haven’t seen any.  Look online (taobao, Tmall etc) and take a picture & show it as a Chinese packaging.

If this doesn’t work;  A grey area still exists in online sales of prescription medicines (with or without script), by paying cash on delivery. This is currently still possible as it’s classed as an offline sale. So a brief check on JD, Tmall or Taobao for your medicine - 赖诺普利 - has many sellers.

A “friend” has done this many times for various items up to 350rmb and never had a problem. Of course due diligence is required to ensure your dosage matches and your paying the market price, obviously, “special” prices or incredible deals should be avoided.  You can open the parcel in front of the courier and inspect the goods, if somethings amiss you just refuse to sign, but as I said, it’s never been an issue.

This has reminded me 15 years ago trying to describe in hand signals and gesturing to my buttocks that I wished to purchase hemorrhoid suppositories from the pharmacist, and ending up with packet of prophylactic!   Eventually it became useful to keep an empty Chinese packet and just show that whenever I needed it. So perhaps bite the bullet on an online sale, then use the packet to find them more locally, or take a picture if you’ve time to shop around.

While I don’t use the same one I’ve never had much of a problem. Take the box from your meds to the local pharmacy.  They’ll look it up in their book to find the Chinese name and hopefully you’ll be good to go.  I’ve gone to a couple pharmacies in Beijing and never been asked for proof of prescription.
Otherwise you may just have to find a local doctor and ask them to re-prescribe it for you