looking for Robaxacet or at least something similar for tense muscles, lower back pain etc

What should I ask for at the pharmacy that has similar properties

thanks all

You could probably take the package to a pharmacy and they should be able to find something similar that contains the same ingredients.

That would be Acetaminophen and Methocarbamol.

See: https://www.drugs.com/international/robaxacet.html 

Actually if you want exactly this combination you will need to buy the two drugs separately.

 

Do not ask for Robaxecet, they won't have any idea what you mean. Ask for (separately)  Acetaminophen and Methocarbamol. . There are many different  local brands of each.

 

Best to write down the names, clearly in block letters, and show them. Thais have their own way of  pronouncing chemical names and may not understand yours (they don't mine!).