Compare Lidocaine vs. Topamax

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

Lidoderm (Lidocaine)

Prescription only

Topamax (topiramate)

Prescription only
Treats nerve pain.

Lidoderm (Lidocaine) patches work well by releasing a local anesthetic into the skin and relieving pain by targeting damaged nerves.

4.2/ 5 average rating with 18 reviewsforLidocaine
Prevents seizures and migraine headaches.

Topamax (topiramate) is very effective at preventing many types of seizures and migraines, but it can cause several severe side effects that can lead to stopping the medication.

3.3/ 5 average rating with 56 reviewsforTopamax
Upsides
  • Lidoderm (Lidocaine) can treat pain better for people who can't take oral pain medications due to allergies or bad side effects.
  • Has been shown to relieve nerve pain due to shingles for up to 12 hours at a time.
  • Patches can be cut into smaller pieces to best fit the areas of skin they need to be used on.
  • Can lower your number of seizures and also prevent migraine headaches. This medicine can be used on its own or with other antiepileptic medicines to lower the frequency of seizures.
  • Doesn't need routine blood tests like similar medications.
  • Available in short-acting and long-acting forms.
  • Comes as a generic, so it's relatively cheap.
Downsides
  • Can cause skin irritation after using it the first time, but for most people it's mild and goes away in a few minutes or hours.
  • Used patches contain enough medicine to be dangerous to children and pets, so store and dispose of the patches in a safe place out of their reach.
  • Might not be the best choice if you've had allergic reactions to numbing medications (local anesthetics) in the past.
  • Even though only small amounts of Lidoderm (Lidocaine) are absorbed into the body through the skin, if you're taking medications that treat arrhythmias, Lidoderm (Lidocaine) can affect how they work.
  • Patches shouldn't be left on for more than 12 hours, used on very large areas of skin, or covered with a heating pad.
  • Can cause many severe side effects. People starting Topamax (topiramate) need to be monitored for these effects as soon as they start treatment.
  • This medicine can take 4 to 6 weeks for the full effects of this medication to kick in, especially for people taking it for migraines.
  • Children taking Topamax (topiramate) for long periods of time need to have their dose adjusted by their pediatrician as they grow.
  • At higher doses (ie. 400 mg/day), children may experience difficulty with concentration/attention, fever, flushing, and confusion.
Used for
Dosage forms
  • Cream, gel, or ointment
  • Jelly
  • Spray
  • Topical solution
  • Patch
  • Pill
  • Extended release capsule
Price
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Reviews
18 reviews so far
67%
saidit'sworth it
72%
saiditworked well
22%
saidit'sa big hassle

Have you used Lidoderm (Lidocaine)?

Leave a review
56 reviews so far
52%
saidit'sworth it
50%
saiditworked well
36%
saidit'sa big hassle

Have you used Topamax (topiramate)?

Leave a review
Side effects
The Lidoderm (Lidocaine) FDA package insert doesn’t have numbers about how common side effects are.
39possible side effects
  • Sleepiness
    26%
  • Loss of appetite
    24%
  • Fatigue
    16%
  • Injury
    14%
  • Nervousness
    14%
  • Personality disorder (behavior problems)
    11%
  • Difficulty with concentration/attention
    10%
  • Weight loss
    9%
  • Aggressive reaction
    9%
  • Abnormal gait
    8%
  • Purpura
    8%
  • Difficulty sleeping
    8%
  • Viral infection
    7%
  • Impaired coordination
    6%
  • Nausea
    6%
  • Increased saliva
    6%
  • Muscle spasm
    5%
  • Constipation
    5%
  • Difficulty with memory
    5%
  • Pneumonia
    5%
  • Dizziness
    4%
  • Speech disorders/ related speech problems
    4%
  • Nose bleed
    4%
  • Confusion
    4%
  • Urinary incontinence
    4%
  • Stomach flu
    3%
  • Psychomotor slowing
    3%
  • Skin disorder
    3%
  • Allergic reaction
    2%
  • Abnormal reflexes
    2%
  • Thirst
    2%
  • Pussing
    2%
  • Hair loss
    2%
  • Dermatitis
    2%
  • Increased hair growth
    2%
  • Red skin rash
    2%
  • Eye abnormality
    2%
  • Abnormal vision
    2%
  • Leukopenia
    2%
See more detailed side effects
Risks and risk factors
  • Overdose
    • Use of heating pad on skin
    • Applying patch to red, irritated or broken skin
    • Leaving patch on for more than 12 hours
    • Using patch on a very large area
    • Older age and lower body weight
    • Liver disease
  • Serious allergic reaction
    • Allergy to numbing medications (local anesthetics)
  • Accidental poisoning
    • Not disposing of Lidoderm (Lidocaine) correctly
    • Children and pets can reach medication
  • Eye irritation
    • Not washing hands after touching or applying Lidoderm (Lidocaine)
  • Skin reactions
    • Applying Lidoderm (Lidocaine) to warm skin
    • Covering patch with wrap or heating pad
  • Heart problems
    • History of heart problems
    • Using Lidoderm (Lidocaine) with drugs to treat irregular heartbeat
See more detailed risks and warnings
  • Suicidal thoughts or behavior
    • History of depression
  • Fever and inability to sweat
    • Children
  • Mental and cognitive changes
    • History of metabolic disorders
    • People also taking Depakote
  • Kidney stones
    • Low-carb diet
    • Dehydration
    • Drug interactions
  • Vision problems
  • Withdrawal seizures
    • Stopping Topamax (topiramate) suddenly
See more detailed risks and warnings