Hello
Your husband is taking GABAPENTINE thrice in a day . He is also taking tylenol (
paracetamol 500 mg two times in a day ) .
Simultaneously , your husband started these drugs , however these two drugs don't interact with each other .
The main side effects of gabapentine are ;somnolence ,
dizziness , ataxia, weakness, TREMORS ( jerks , as in your husband case )
rhinitis ,
blurred vision , vertigo ( simulates as jerks ).
So in your husband case jerks are definitely a side effect of gabapentine .
But tolerance develops to these effects within 2 weeks .
Since this drug is advised for
Rheumatoid arthritis and Neuropathy, so I strongly advise to take gabapentine and tylenol till your treating doctor advise . Because tolerance will develop within 2 weeks , after that your husband will not feel any jerks , you can continue treatment till complete relief in diseases . However after consultation with your doctor , you can decrease the dose of gabapentine.
Hope this will help you.
Good luck.