Just check the ingredients. If the only active is Dextromethorphan, then you're good. (Dextromethorphan hydrobromide often written as DXM HBr). If there is another ingredient, it probably is a no-go. I know that the Dollar Tree brand of capsules are only DXM, at least they used to be and I've heard they were also very easy to steal.
I just looked it up and it turns out that of the several types of children's robitussin, the only one that has only DXM as the active ingredient is their extended release. Notice how underneath each type it says what symptoms it's supposed to relieve? Notice how that one only lists "cough"? Sure enough, it's the only one without other shit. However, it gets a little more complicated. The thing to be aware of is that this 12-hour children's version is DXM polistirex, not regular DXM HBr. It's still fine to use to get high, in fact some people prefer it, but it lasts way longer, and doesn't hit nearly as hard making it a lot more cumbersome to get your dose right. I've never actually done it tbh and I'd recommend trying the regular DXM HBr first. Here is one that is DXM only that is not polistirex if you really want Robitussin specifically. But there are others. Fuck amazon, but Robafen is one you can get in bulk from them. If you're ordering online though, I would just go with Robocough.
Just check the ingredients. If the only active is Dextromethorphan, then you're good. (Dextromethorphan hydrobromide often written as DXM HBr). If there is another ingredient, it probably is a no-go. I know that the Dollar Tree brand of capsules are only DXM, at least they used to be and I've heard they were also very easy to steal.
I just looked it up and it turns out that of the several types of children's robitussin, the only one that has only DXM as the active ingredient is their extended release. Notice how underneath each type it says what symptoms it's supposed to relieve? Notice how that one only lists "cough"? Sure enough, it's the only one without other shit. However, it gets a little more complicated. The thing to be aware of is that this 12-hour children's version is DXM polistirex, not regular DXM HBr. It's still fine to use to get high, in fact some people prefer it, but it lasts way longer, and doesn't hit nearly as hard making it a lot more cumbersome to get your dose right. I've never actually done it tbh and I'd recommend trying the regular DXM HBr first. Here is one that is DXM only that is not polistirex if you really want Robitussin specifically. But there are others. Fuck amazon, but Robafen is one you can get in bulk from them. If you're ordering online though, I would just go with Robocough.