Well, the second round of Go-Lytely worked for all of two days before the constipation problem became evident again. So, I called both my Neuro and my Gastro today. My Neuro wants me to try replacing the Primidone with Gabapentin, which is the generic form of Neurontin. This is another one of the anti-seizure meds that is prescribed for all kinds of off label uses, including Peripheral Neuropathy, Tremors, and Myoclonus.
I’ve used this Drug Interaction Checker to see if I could take the Neurontin while the Primidone was still in my system, and that’s OK. So I should be alright changing over to the Gabapentin tonight. The half life of Primidone is 14 hours, so half the dose will be out of my system by 9:00PM tonight. I’ll take the Gabapentin before bed, and almost all the Primidone will be out of my system by tomorrow morning.
As I would have suspected, the list of possible side effects is long, and one of them is constipation. But, diarrhea is also in the list. I can only hope that it will control my Myoclonus as well as the Primidone has, and head me in the direction of diarrhea, rather than constipation! Only time will tell.
I feel like I’ve come full circle taking this medicine, as our older daughter (who suffered from Peripheral Neuropathy as a result of Gastric Bypass Surgery) was put on Neurontin about the same time I was finally getting my Neurologist’s diagnosis of Peripheral Neuropathy and Parkinson’s Disease.