Not the most popular opinion here but I went from being on 225 for many years, down to 150 back in September 2018. I had no immediate withdrawal symptoms but they came after a month. Because I'd been through neurontin withdrawal which as Leonard said, was horrible for me, I knew what to look for, so I wasn't blindsided, nor were my symptoms debilitating enough to say I wouldn't taper that way again. But I'm not sure I'd go from 300 to 150. My choice to taper from 225 to 150 was based on the desire to simplify, I just was not interested in counting beads, I just took 2 capsules instead of 3 and was willing to accept the consequences. I will say though, that 300 to 150 could be dangerous, since 300 is a pretty high dose. Use your best judgment in your choice and most importantly, support your health during this process!