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Trimethobenzamide

Trimethobenzamide Side Effects

Kristianne Hannemann, PharmDAllison Gourley, PharmD
Reviewed by Kristianne Hannemann, PharmD, Allison Gourley, PharmD
Last reviewed on January 16, 2024

The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.

Common Side Effects

  • Confusion (disorientation)
  • Headache
  • Drowsiness
  • Dizziness
  • Blurred vision
  • Muscle cramps
  • Diarrhea
  • Rash
  • Tremors

Trimethobenzamide serious side effects

Contact your healthcare provider immediately if you experience any of the following.

  • Movement problems: muscle spasms, tremor, restlessness, trouble swallowing or speaking
  • Changes in your brain function: coma, depression, seizures
  • Liver damage: yellowing of your skin or whites of your eyes, belly pain, dark-colored urine
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Source: DailyMed

The following Trimethobenzamide side effects have also been reported

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Incidence not known

Abdominal or stomach pain

change in consciousness

chills

clay-colored stools

confusion about identity, place, and time

dark urine

difficulty swallowing

discouragement

dizziness

feeling sad or empty

fever

headache

irritability

itching

lack of appetite

loss of balance control

loss of consciousness

loss of interest or pleasure

mask-like face

nausea

pale skin

rash

seizures

severe spasm where the head and heels are bent backward and the body arched forward

shuffling walk

slowed movements of the arms and legs

slurred speech

sore throat

swelling of the arms, face, legs, lips, tongue, or throat

tic-like (jerky) movements of the head, face, mouth, and neck

trembling and shaking of the fingers and hands

trouble concentrating

trouble sleeping

unpleasant breath odor

unusual bruising or bleeding

unusual tiredness or weakness

vomiting of blood

yellow eyes or skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Incidence not known

Blurred vision

diarrhea

drowsiness

muscle cramps

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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Why trust our experts?

Kristianne Hannemann, PharmD, is a licensed pharmacist in California. She has been a retail pharmacy manager and staff pharmacist for over 7 years and has contributed drug information content to different health companies.
Allison Gourley, PharmD, is a kidney and pancreas transplant pharmacist at a teaching hospital in the San Francisco Bay Area. When she’s not educating patients about their immunosuppressants, she's actively involved in transplant research.

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