I am a mmj patient and I hope what is labeled is what they say it is? I medicate for pain and trying to narrow down the strains that work best that. If they slap on a sticker that says something different than it actually is, that causes problems for the user. I go to a reputable dispensary or through the grower at a Farmer's Market, which is ideal. I live in WA state.
I've only been a med patient since last May. I can tell by the taste if it's some strain that has a distinctive taste like Girl Scout Cookie, White Widow or Willy's Wonder there's several others that come to mind. I've been trying out a couple of grams of this and that to find the best strains for what I'm medicating for. It's been quite an education.
Vaporizing several different strains helps with tolerance too.