Do you mean just cut back on the Naltrexone? If you are feeling sick, I would recommend taking whatever dose you can manage (lots of people start with 12.5, move to 25 and then 50 over time) and move up as you tolerance increases (maybe try a week at each and then go back to the lower dose for an extra week if you find you are getting too nauseous). If you quit taking it because you are too sick then you are no further ahead so if you have to increase slowly, so be it. If you find you are at 25 and it is working, then no need to increase. If you find you aren't having progress, you may want to consider increasing.
What I can tell you is that when I started, 50 mg made by
very nauseous so I added slowly. I now take 75 mg (long story but I have absorbtion issues so needed a little more to block the endorphins) and am not nauseous really at all. And it is working and I am getting better. I know it can be frustrating when all you want to do is jump to the dose that will get you the most results but as long as you get there, that is the important part. No point in torturing yourself any more than you have to....this is hard enough already, if you ask me.
Jephiner