Gabapentin Allergies and Gabapentin Side Effects

Gabapentin can cause a reaction called anticonvulsant hypersensitivity syndrome. This syndrome can be life-threatening. Call your doctor right away if you have a rash, a fever, and swollen lymph nodes.

Gabapentin can cause also cause a severe allergic reaction. Symptoms can include:

  • trouble breathing
  • swelling of your throat or tongue
  • hives
  • rash

Don’t take this drug again if you have ever had an allergic reaction to it before. Taking it a second time after any allergic reaction to it could be fatal (cause death).

COMMON side effects


If experienced, these tend to have a Severe expression

  • Loss Of Muscle Coordination
  • Nystagmus, A Condition With Involuntary Eye Movements

If experienced, these tend to have a Less Severe expression

  • Dizziness
  • Drowsiness
  • Fluid Retention In The Legs, Feet, Arms Or Hands
  • Inducing Of A Relaxed Easy State
  • Low Energy

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • Depression
  • Feelings Of Hostility
  • Memory Loss
  • Mental Status Changes
  • Mood Changes
  • Trouble Breathing

If experienced, these tend to have a Less Severe expression

  • A Bacterial Infection Of The Middle Ear
  • A Feeling Of General Discomfort Called Malaise
  • A Type Of Speech Disorder Called Dysarthria
  • An Infection Due To A Virus
  • Backache
  • Blurred Vision
  • Constipation
  • Cough
  • Diarrhea
  • Double Vision
  • Dry Mouth
  • Generalized Weakness
  • Hyperactive Behavior
  • Lazy Eye
  • Muscle Tremors
  • Nausea
  • Throat Dryness
  • Throat Irritation
  • Vomiting
  • Weight Gain

RARE side effects


If experienced, these tend to have a Severe expression

  • A Condition With Muscle Tissue Breakdown Called Rhabdomyolysis
  • A Hypersensitivity Reaction To A Drug
  • A Significant Type Of Allergic Reaction Called Anaphylaxis
  • A Skin Disorder With Blistering And Peeling Skin Called Stevens-Johnson Syndrome
  • A Type Of Allergic Reaction Called Angioedema
  • A Type Of Significant Allergic Skin Reaction Called DRESS Syndrome
  • A Yellowing Of The Eyes Or Skin From Buildup Of Bilirubin Called Jaundice
  • Abnormal Liver Function Tests
  • Bullous Pemphigoid
  • Confusion
  • Decreased Lung Function
  • Erythema Multiforme, A Type Of Allergic Skin Reaction
  • Fainting
  • Increased Eosinophils In The Blood
  • Irritability
  • Low Amount Of Sodium In The Blood
  • Multiple Organ Failure
  • Suicidal Thoughts
  • Swollen Lymph Nodes

If experienced, these tend to have a Less Severe expression

  • A Skin Rash
  • A Stuffy And Runny Nose
  • Agitation
  • Altered Interest In Having Sexual Intercourse
  • Anxious Feelings
  • Behavioral Problems
  • Decreased Appetite
  • Difficulty Concentrating
  • Difficulty Sleeping
  • Enlarged Breasts
  • Excessive Sweating
  • Fever
  • Headache
  • High Blood Sugar
  • Increased Creatine Kinase Levels
  • Indigestion
  • Pain
  • Pink Eye
  • The Inability To Have An Erection