Compare Topamax vs. Myrbetriq

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

Qudexy Xr (Topiramate)

Prescription only

Myrbetriq (mirabegron)

Prescription only
Prevents seizures and migraine headaches.

Qudexy Xr (Topiramate) is useful for preventing seizures and migraines, and doesn't require blood tests while you're on it.

4.4/ 7 average rating with 56 reviewsforTopamax
Treats overactive bladder.

Myrbetriq (mirabegron) is a good treatment for overactive bladder with the least chance for dry mouth and constipation, but talk to your doctor if you have high blood pressure.

Upsides
  • Used on its own or with other antiepileptic medicines to lower the frequency of seizures, especially for people with tonic-clonic or partial seizures, or Lennox-Gestaut syndrome.
  • Helpful in preventing frequent migraine headaches.
  • Doesn't need routine blood tests.
  • Myrbetriq (mirabegron) helps you to have better control over your urination.
  • Myrbetriq (mirabegron) causes less drowsiness and constipation than other medicines for overactive bladder.
  • May be used if you have glaucoma.
  • Myrbetriq (mirabegron) may be safer to use if you are over 65 years old.
Downsides
  • Can cause sleepiness, speech problems, tingling sensations, and weight loss.
  • A few people will get kidney stones.
  • Not safe to use if you're pregnant.
  • Myrbetriq (mirabegron) might raise your blood pressure.
  • If you have an obstruction in your bladder, Myrbetriq (mirabegron) might make you retain more urine.
  • Myrbetriq (mirabegron) may be very expensive depending on your insurance.
  • Not recommended if you have severe liver or kidney disease.
Used for
Dosage forms
  • Pill
  • Extended release capsule
  • Extended release
Price
Lowest price near you
$10.2
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Lowest price near you
$339.24
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Reviews
56 
52%
think this treatment is worth it
50%
think this treatment works well
36%
think this treatment is a hassle

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Side effects
10possible side effects
  • Somnolence
    28%
  • Dizziness
    25%
  • Ataxia
    16%
  • Nervousness
    16%
  • Fatigue
    15%
  • Speech disorders/Related speech problems
    13%
  • Psychomotor slowing
    13%
  • Vision abnormal
    13%
  • Difficulty with memory
    12%
  • Paresthesia
    11%
See more detailed side effects
8possible side effects
  • High blood pressure
    11%
  • Common cold symptoms
    4%
  • Urinary tract infection
    4%
  • Headache
    2%
  • Constipation
    2%
  • Chest cold infection
    2%
  • Joint pain
    2%
  • Rapid heart beat
    2%
See more detailed side effects
Risks and warnings
  • Suicidal thoughts or behavior

    History of depression

  • Uncontrolled body temperature

    Children

  • Mental changes due to high ammonia

    History of metabolic disorders

    ...and 1 more risk factors

  • Kidney stones

    Low-carb diet

    ...and 2 more risk factors

  • Withdrawal seizures

    Stopping Qudexy Xr (Topiramate) suddenly

See more detailed risks and warnings
  • Increased blood pressure

    Untreated high blood pressure

  • Urinary retention

    Bladder outlet obstruction

See more detailed risks and warnings