Gabapentin (Neurontin, Gralise, Horizant) is a medicine used to treat partial seizures, nerve pain from shingles, and restless leg syndrome. It works on the chemical messengers in your brain and nerves. It is from a group of medicines called anticonvulsants. Gabapentin 1200 mg tablet can cause lids threatening breathing problems, especially if you already have any breathing disorder, or you’re taking other pills as well that can make you drowsy or slow your breathing. It can be harmful if you’re taking a 1200 mg dosage without telling your healthcare doctor. Some people have thoughts about suicide while taking gabapentin 1200 mg medication. if you have any sudden changes in mood behavior or thoughts about suicide. Tell your doctor right away. Do not increase the dosage by yourself, talk to your doctor they will increase the dosage to 2,400–3,600 mg per day. Your doctor first prescribed you a low dosage of gabapentin tablets and then slowly increased the dosage. Once you find a dose that suits you, it will usually stay the same. However, gabapentin dosage also depends on the medical condition of the patient.