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Popular Brands: : Neurontin, Gabapentin, Gralise, Novo-gabapentin, Apo-gabapentin
Official FDA Reports426,116
Social Media Events7,689
Total Posts6,401
Avg. Review Score3.34/ 5
Active Ingredients
  • Gabapentin
  • Actavis Elizabeth Llc
  • Depomed Inc
  • Pfizer Pharmaceuticals Ltd

  This report is for all products sharing this active ingredient. For more details, please use our Workbench for research on individual brands like Neurontin.

* Extracted from FDA Adverse Event Report


The quarterly trend chart illustrates changing levels of adverse events over time. Results from both the FDA Adverse Event Database (FAERS) and adverse events extracted from social media by Druginformer are plotted side-by-side for easy comparison.

The proportion of people completing user reviews who complained about a side effect.

The proportion of social media adverse event complaints for each adverse event type.

The proportion of FAERS (FDA) adverse event complaints for each adverse event type.

Gabapentin Side Effects

  Social Media
(Online Comments)
(Reports Submitted to FDA)
Side Effect On Drug
Reports % of
Alarm Reports % of

* DrugInformer calculates alarm using a proprietary algorithm. Alarm should not be taken as an ofiicial signal from the FDA or other regulatory entity.

User Voices

The following are comments from users that experienced side effects while taking Gabapentin


short-term memory loss pros> Gabapentin's side effects deters use. Gabapentin (generic for Neurontin) can be used for nerve pain, commonly referred to as neuropathy. Neuropathy c...

Source: neurontin-gabapentin-review-454b0

View full report on Gabapentin related amnesia

Did the author experience amnesia while taking gabapentin?

What is this?


dizziness , drowsiness helps relieve pain, covered by insurance, sleep better Neurontin has made me life less painful!!! Neurontin (Generic Name ~ Gabapentin) Two years ago, I...

Source: neurontin-gabapentin-review-15231

View full report on Gabapentin related dizziness

Did the author experience dizziness while taking gabapentin?

What is this?


... common side effects of Neurontin are dizziness and drowsiness. Some patients may experience nausea, vomiting, blurred vision, lack of coordination, dry mouth, diarrhea, constipation , weight gain, and ...

Source: neurontin-gabapentin-review-15231

View full report on Gabapentin related constipation

Did the author experience constipation while taking gabapentin?

What is this?

Tell us about your Experience with Gabapentin

Thank you for sharing your experience with us!

Share Your Experience

Druginformer Identified Side Effects: Hallucination, Disturbance in attention, Adverse drug reaction, Thought blocking, Anxiety, Palpitations, Fear of crowded places, Fear of death, Insomnia, Fear

Effectiveness Rating:     Overall Rating:

Posted By Doug on July 3, 2021 @ 8:20 pm

Druginformer Identified Side Effects: Abdominal pain upper, Abdominal pain

Effectiveness Rating:     Overall Rating:

Posted By Vicki on December 29, 2019 @ 10:49 pm

Druginformer Identified Side Effects: Abdominal pain upper

Effectiveness Rating:     Overall Rating:

Posted By Vicki on December 29, 2019 @ 10:44 pm

First month, 100mg increased to 3x/day, no side effects, positive results. Second month, doctor increased dosage to 200 mg, 3x/day. No side effects until 3rd week when I began experiencing severe upper abdominal pain with cramping. I went back to first month's dosage and it seems to help. Disappointing because it was really helping with pain, more so at the higher dosage. I meet with doctor this week and will discuss it with her.

Druginformer Identified Side Effects: Weight increased, Alopecia

Effectiveness Rating:     Overall Rating:

Posted By Lisa on October 1, 2019 @ 3:01 pm

I'm taking Neurontin for femoral nerve pain, it works most of the time which I'm happy with but the hair thinning isn't acceptable and is knocking my confidence, I have fine hair as it is. My eyelashes are disappearing too.

Druginformer Identified Side Effects: Fine motor delay, Fatigue, Feeling drunk, Apathy

Effectiveness Rating:     Overall Rating:

Posted By Samantha on March 15, 2019 @ 9:01 pm

I’ve noticed fine motor skills like typing, and hand writing, were more difficult. I would be typing and it is as if my fingers are two words behind everything else – like a really slow computer. Otherwise I felt very disassociated during the first week, and the first week after increasing dosages (tapered from 100mg 3 x a day to 300mg 3 x day over three months). It was useful for endometriosis related pain. The effects on pain were enough to make me really persist. Side effects are worst 12 – 72 hours after starting / increasing dosage. After three weeks on 300 x 3 times a day the lingering tiredness had passed and I had started to feel more like my normal self again.

Druginformer Identified Side Effects: Suicidal behaviour, Depression, Tinnitus, Dizziness

Effectiveness Rating:     Overall Rating:

Posted By Jan on June 23, 2018 @ 1:56 pm

Druginformer Identified Side Effects: Abnormal dreams

Effectiveness Rating:     Overall Rating:

Posted By Sabrina on November 14, 2017 @ 6:04 pm

I have the most vivid, strange dreams that I remember in detail and in color. I generally don't mind them with the exception of when they wake me up multiple times a night.

Druginformer Identified Side Effects: Dyspnoea, Wheezing, Cough, Hyperhidrosis, Fear, Fear of crowded places, Agoraphobia, Panic attack, Panic disorder with agoraphobia, Blood testosterone decreased, Apathy, Amnesia, Drug withdrawal syndrome

Effectiveness Rating:     Overall Rating:

Posted By Ryan on November 4, 2017 @ 8:20 pm

Had all of these side effects. Was taking off label for anxiety. Anxiety was initially better, but after about 2-3 months anxiety returned much worse. I am now trying to get off of this medication, however you must taper as you may have seizures if abruptly stopped. You also have a withdrawal syndrome with all of the above mental symptoms, however they are twice as bad as they were when you were taking the medication. Avoid if you can! Try St. John’s Wort - I’m taking that now and the anxiety/depression has lifted almost completely.

Druginformer Identified Side Effects: Hallucination, auditory

Effectiveness Rating:     Overall Rating:

Posted By Robin on November 3, 2017 @ 1:59 am

I started hearing a man's loud voice when I was asleep. I mean, LOUD, like he was using a megaphone. It seemed like he was telling me how to do something, but his words made no sense. I forced myself to wake up but I still heard the man's loud voice. I just wanted him out of my head! He finally stopped talking when I stood up and walked to the bathroom. I have bipolar disorder, anxiety, depression, PTSD and Asperger's Syndrome.

Druginformer Identified Side Effects: Dizziness, Headache, Sleep disorder, Constipation, Tremor, Vertigo positional, Muscular weakness, Abdominal distension, Flatulence, Weight increased, Amnesia, Bladder pain, Balance disorder, Dysgeusia, Cough, Dry mouth

Effectiveness Rating:     Overall Rating:

Posted By Yves Rose on September 4, 2017 @ 2:45 am

I am taking gabapentin 900 mg 3x daily for seven years. before I used to take on and off. What are my chances now. what should i do?

Additional Drug Information

* Warning: The facts and figures contained in these reports are accurate to the best of our capability; however, our metrics are only meant to augment your medical knowledge, and should never be used as the sole basis for selecting a new medication. As with any medical decision, be sure to work with your doctor to ensure the best choices are made for your condition.

* About FAERS: The FDA Adverse Event Reporting System (FAERS) is used by FDA for activities such as looking for new safety concerns that might be related to a marketed product, evaluating a manufacturer's compliance to reporting regulations and responding to outside requests for information. Reporting of adverse events is a voluntary process, and not every report is sent to FDA and entered into FAERS. The FAERS database may contain duplicate reports, the report quality is variable, and many factors may influence reporting (e.g., media attention, length of time a drug is marketed, market share). For these reasons, FAERS case reports cannot be used to calculate incidence or estimates of risk for a particular product or compare risks between products.