Compare Neurontin vs. fluphenazine

Head-to-head comparisons of medication uses, side effects, ratings, and more.

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Neurontin (gabapentin)

Prescription only

Prolixin (fluphenazine)

Prescription only
Treats tingling and burning nerve pain.

Neurontin (gabapentin) is an old seizure disorder medicine that is now used to treat nerve-related pain caused by different conditions.

3.4/ 5 average rating with 620 reviewsforNeurontin
Treats schizophrenia and psychosis.

Prolixin (fluphenazine) can stabilize your mood. It is used to find the right dose for you before moving to a long-acting injection.

Upsides
  • Originally used to treat epilepsy (partial seizures), but now it primarily treats neuropathic pain that's caused by nerve stimulation or damage.
  • Studies show it's most effective for nerve pain from diabetes, shingles, and fibromyalgia (a painful muscle condition).
  • It's available as a generic, so it's less expensive than similar medications.
  • Good at stabilizing your mood.
  • Available in several oral and injectable forms, including a long-acting injection that is taken less frequently.
Downsides
  • Neurontin (gabapentin) can cause some side effects, including memory problems, drowsiness, dizziness, or confusion. There is a higher risk for these side effects if you drink alcohol, so it might not be the best medication for heavy drinkers.
  • You can't skip or miss doses since suddenly stopping Neurontin (gabapentin) can cause seizures.
  • Can make you sensitive to the sun.
  • Can affect how your body regulates your temperature.
  • Can make it difficult for you to control your movements if you've been on Prolixin (fluphenazine) for a while.
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Used for
Dosage forms
  • Pill
  • Oral solution
  • Extended release
  • Pill
  • Liquid
  • Injection
Price
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Reviews
620 reviews so far
57%
saidit'sworth it
40%
saiditworked well
19%
saidit'sa big hassle

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Side effects
20possible side effects
  • Dizziness
    28%
  • Drowsiness
    21%
  • Swelling in the limbs
    8%
  • Abnormal physical weakness
    6%
  • Diarrhea
    6%
  • Infection
    5%
  • Dry mouth
    5%
  • Constipation
    4%
  • Nausea
    4%
  • Headache
    3%
  • Accidental injury
    3%
  • Stomach pain
    3%
  • Vomiting
    3%
  • Worse coordination
    3%
  • Thinking abnormal
    3%
  • Decreased vision
    3%
  • Gas
    2%
  • Weight gain
    2%
  • Abnormal gait
    2%
  • Lack of coordination
    2%
See more detailed side effects
The Prolixin (fluphenazine) FDA package insert doesn’t have numbers about how common side effects are.
Risks and risk factors
  • Suicidal thoughts or behavior
  • Neurologic and psychiatric side effects (children)
    • Children ages 3 to 12
  • Serious allergic reaction and multiple organ problems
  • Driving impairment
    • Taking Neurontin (gabapentin) with alcohol
    • Taking other medicines that cause dizziness and/or drowsiness
  • Withdrawal seizures
    • Stopping Neurontin (gabapentin) suddenly
See more detailed risks and warnings
  • Increased risk of death
    • People over 65 with dementia and psychosis
  • Difficulty controlling movements
  • Neuroleptic malignant syndrome
    • Taking antipsychotic medications
  • Low white blood cell count
See more detailed risks and warnings