Take the magnesium at the opposite time of day. I take 600 mgs of gabapentin before bed. I take the supplements about 12 hours opposite to that. (between breakfast and lunch)

I've been taking gabapentin for 14 years. The way it helps my body and mind let go of tension is great. It allows me to sleep without muscle twitches. It has a short half-life of 8 hours so it does no effect me the next day.