Reglan and primary care

My dad has been taking metoclopramide (Reglan generic) for about 8 weeks for delayed gastric emptying. About 2 years ago he suffered a freak infection that left him paralyzed from the chest down. 3 surgeries and A LOT of therapy later, he has made good progress, until he started taking this medication. He has been struggling with ongoing fatigue, muscle weakness, minor episodes of confusion, and a few depressive episodes. I realized the connection when my mom had said he started having more trouble walking over the past 3 weeks or so. He has fallen 3 times in 2 weeks. He went to his primary care doc today and he immediately took him off of the meds. He told my dad "I have one word to describe this med. Nasty." We just pray that he gets his strength back after it works out of his system.