Compare Compro vs. Erythromycin

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

Compro (Prochlorperazine)

Prescription only

Ery-Tab (Erythromycin)

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.

4.0/ 7 average rating with 20 reviewsforCompro
Prevents and treats infections.

Ery-Tab (Erythromycin) works well to treat a variety of bacterial infections, but check for drug interactions before taking it.

  • 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.
  • It's used to treat a variety of infections caused by bacteria.
  • It comes as an oral suspension and as a tablet.
  • You can get a test done that'll show you if Ery-Tab (Erythromycin) will work for you.
  • 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.
  • Interacts with a lot of drugs, so don't take it with colchicine, statin drugs, verapamil, amlodipine, or diltiazem.
  • Diarrhea and other stomach problems are common side effects.
  • Can cause liver problems, so people with previous liver problems need to be closely monitored while on Ery-Tab (Erythromycin).
Used for
Dosage forms
  • Pill
  • Suppository
  • Pill
  • Delayed release tablet
  • Extended release
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Side effects
The Compro (Prochlorperazine) FDA package insert doesn’t have numbers about how common side effects are.
The Ery-Tab (Erythromycin) FDA package insert doesn’t have numbers about how common side effects are.
Risks and warnings
  • Increased risk of death

    Over age 65

    ...and 2 more risk factors

  • Seizures

    History of seizures

  • Involuntary muscle movements

    Age over 65

  • Driving impairment

    Taking with alcohol

    ...and 1 more risk factors

See more detailed risks and warnings
  • Liver damage

    History of liver disease

  • Diarrhea from a superinfection

    Long antibiotic treatment period

See more detailed risks and warnings