Hello everyone.
In the last 2.5 years there have been constant rumors and claims that drinking N has a high chance of vomiting. It's a wide spread concern and I understand why. Nobody wants to fail an attempt with N due to a simple thing like puking. But this has also lead to fear mongering about this rather reliable and peaceful method, some people decide to go with SN instead and it also resulted in alternative administration methods of N that aren't as safe - such as rectal administration of said substance. I don't recommend that.
But this risk of vomiting after drinking N is extremely overblown and to prove that, I'll link a snippet of a live-stream from Philip Nitzschke, from back in Spring 2018. He already addressed these concerns and explained why they're valid but don't make much sense. The reason why Exit International recommends taking anti-emetics (and I guess that's the reason why everyone is so worried about puking) before drinking N is because there are plenty of people that want to end their life due to old age or terminal illness. That's the main audience of their organization. And there are many diseases where nausea is part of the condition or the treatment, such as chemotherapy (for example as treatment for cancer). That's why they recommend taking anti-emetics prior to drinking N. It's a necessary and logical safety measure if you're in such a circumstance. But if you're young, healthy and don't suffer from such diseases, leaving via N should be rather easy from a technical perspective. The risk that you will vomit is extremely small and I'm not aware of any credible stories that resulted in a failed attempt due to vomiting.
I'm currently taking drugs to treat rheumatoid arthritis, such as methodrexat and this drug has nausea as a side effect, therefore it would make sense for me to take the anti-emetics, despite my young age of 26. The substance itself isn't that gruesome or disgusting that its consumption alone would cause puking. But Exit International generally recommends everyone to take anti-emetics prior to drinking N not because it's absolutely necessary to succeed your attempt but simply as a safety measure. It simply doesn't harm to take some anti-emetics if you're drinking a +600 dollar substance anyway.
That's my interpretation of this live-stream, here is the link. I hope this settles this question once and for all. If you have N, you're in possession of the most reliable, peaceful method that is out there, that's a fact - and if you want to end your life, you should take it the proper way, that means oral. Every single euthanasia organization in this world is doing it this way with a 0% failure rate, as far as I know. Read the resources and follow the instructions according to the PPH and you'll have a peaceful and reliable exit.