Nirocton is not a recognized term in any medical or scientific context. It's possible that:

* You might have misspelled the name. Double-check the spelling and try searching again.

* It's a brand name specific to a certain region or country. If you can provide more context about where you encountered this term, it might be easier to identify it.

* It's a fictional term. If you're referring to a book, movie, or other work of fiction, then it might be a made-up term with a specific meaning within that context.

If you can provide more information, I can help you find what you're looking for.