Mixing the three can be dangerous. I have mixed Gabapentin with codeine and it gives me a slightly speedy but calm opiate effect. I don't get much from codeine on its own but it really helps increase the buzz when I mixed it with Gabapentin. Summary. Drug interactions are reported among people who take Gabapentin and Codeine sulfate together. This study is created by eHealthMe based on reports of 140 people who take Gabapentin and Codeine sulfate from FDA, and is updated regularly. Codeine does not work very well on its own. It works better when combined with paracetamol in a single pill. It works better when combined with paracetamol in a single pill. You can buy co-codamol (paracetamol and low-dose codeine) over the counter. It appears that you can.although you should inform the pharmacist of all other drug you are taking to be sure. Sous quelles formes ce médicament se présente-t-il ? Capsules. 100 mg Chaque capsule de gélatine dure, au corps et à la coiffe blanc, portant l'inscription « Gabapentin 100 mg » sur la coiffe, contient 100 mg de gabapentine. Epilepsie. NEURONTIN est indiqué en association dans le traitement des épilepsies partielles avec ou sans généralisation secondaire chez l'adulte et l'enfant à partir de 6 ans (voir rubrique Propriétés pharmacodynamiques). Chaque capsule de gélatine dure, au corps et à la coiffe orange, portant l'inscription « Gabapentin 400 mg » sur la coiffe, contient 400 mg de gabapentine. Ingrédients non médicinaux : amidon de maïs, lactose et talc; tunique : gélatine, dioxyde de titane, oxyde de fer jaune et oxyde de fer rouge. acetaminophen-codeine oral decreases levels of gabapentin oral by increasing metabolism. Enhanced metabolism incr levels of hepatotoxic metabolites. Disclaimer: The information contained herein should NOT be used as a substitute for the advice of an appropriately qualified and licensed physician or Both gabapentin and codeine can have CNS depressant effects, which might affect the ability to perform skilled tasks (see 'Drugs and Driving' in Guidance on Prescribing). Cyclizine Both gabapentin and cyclizine can have CNS depressant effects, which might affect the ability to perform skilled tasks (see 'Drugs and Driving' in Guidance on Prescribing ).