Compare Compro vs. Anzemet

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

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Compro (Prochlorperazine)

Prescription only

Anzemet (dolasetron)

Prescription only
Helps you feel less queasy.

Compro (Prochlorperazine) can be used to treat severe nausea and vomiting and can be taken orally or rectally, but get ready for a nap.

3.0/ 5 average rating with 20 reviewsforCompro
Helps prevent nausea and vomiting

Anzemet (dolasetron) prevents nausea and vomiting and does not have many side effects.

Upsides
  • Available in generic, so it's cheap.
  • Can be taken by mouth, as a shot, or rectally.
  • Can take anywhere from 10 minutes (by shot) to 60 minutes (rectally) to start working.
  • Reduced nausea and vomiting in people receiving chemotherapy.
  • Well-tolerated with mild headache as the most common side effect.
  • Requires only 1 dose prior to chemotherapy and once daily dosing after chemotherapy if needed for delayed nausea/vomiting.
Downsides
  • Can make you really drowsy. Drinking alcohol with it can make the drowsiness even worse.
  • Can't be used by people over 65 because they can be more affected by the side effects.
  • It can make you more likely to get heatstroke.
  • Anzemet (dolasetron) doesn't treat nausea and vomiting that's already happening. It only works to prevent future episodes.
  • High doses of Anzemet (dolasetron) can cause problems with heart rhythm.
  • Can be expensive since a generic version is not available.
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Used for
Dosage forms
  • Pill
  • Suppository
  • Pill
Price
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Reviews
20 reviews so far
45%
saidit'sworth it
35%
saiditworked well
35%
saidit'sa big hassle

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Side effects
The Compro (Prochlorperazine) FDA package insert doesn’t have numbers about how common side effects are.
9possible side effects
  • Headache
    23%
  • Fatigue
    6%
  • Diarrhea
    5%
  • Decreased heart rate
    4%
  • Dizziness
    3%
  • Pain
    3%
  • Increased heart rate
    3%
  • Indigestion
    2%
  • Chills/shivering
    2%
See more detailed side effects
Risks and risk factors
  • Increased risk of death
    • Over age 65
    • Dementia
    • Taking antipsychotics
  • Seizures
    • History of seizures
  • Involuntary muscle movements
    • Age over 65
  • Neuroleptic malignant syndrome
  • Heatstroke
  • Driving impairment
    • Taking with alcohol
    • Taking other medicines that make you less alert
See more detailed risks and warnings
  • Abnormal heart rhythm
    • History of heart rhythms such as long QT syndrome or atrial fibrillation
    • Heart failure
    • Taking other medications that can affect heart rhythms
    • Low potassium or magnesium levels
    • Advanced age
  • Serotonin syndrome
    • Taking other medicines that affect serotonin levels such as tramadol and anti-depressants
See more detailed risks and warnings