Appetite suppressants

For the Consumer

Applies to topiramate: oral capsule, oral capsule extended release, oral tablet

As well as its needed effects, topiramate (the active ingredient contained in Topamax) may cause unwanted side effects that require medical attention.

If any of the following side effects occur while taking topiramate, check with your doctor immediately:

More common
Any vision problems, especially blurred vision, double vision, eye pain, or rapidly decreasing vision
burning, prickling, or tingling sensations
clumsiness or unsteadiness
confusion
continuous, uncontrolled back-and-forth or rolling eye movements
dizziness
drowsiness
eye redness
generalized slowing of mental and physical activity
increased eye pressure
memory problems
menstrual changes
menstrual pain
nervousness
speech or language problems
trouble in concentrating or paying attention
unusual tiredness or weakness

Less common
Abdominal or stomach pain
fever, chills, or sore throat
lessening of sensations or perception
loss of appetite
mood or mental changes, including aggression, agitation, apathy, irritability, and mental depression
red, irritated, or bleeding gums
weight loss

Rare
Blood in the urine
decrease in sexual performance or desire
difficult or painful urination
frequent urination
hearing loss
loss of bladder control
lower back or side pain
nosebleeds
pale skin
red or irritated eyes
ringing or buzzing in the ears
skin rash or itching
swelling
trouble breathing
Incidence not known
Blistering, peeling, or loosening of the skin
blisters in the mouth
blisters on the trunk, scalp, or other areas
bloating
clay-colored stools
constipation
cough
diarrhea
increased rate of breathing
joint or muscle pain
pain or tenderness in upper abdomen or stomach
red skin lesions, often with a purple center
sores, ulcers, or white spots in the mouth or on the lips
yellow eyes or skin