acetaminophen vs metoclopramide

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Side-by-side comparison of acetaminophen and metoclopramide. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

minor Known Drug Interaction

digoxin) by metoclopramide, whereas the rate and/or extent of absorption of drugs from the small bowel may be increased (e.g., acetaminophen, tetracycline, levodopa, ethanol, cyclosporine).

Drug Class
acetaminophen Analgesic / Antipyretic
metoclopramide Prokinetic / Antiemetic
Type
acetaminophen Over-the-Counter
metoclopramide Prescription
Summary
acetaminophen

Acetaminophen (Tylenol) is a medicine that can relieve pain and reduce fever. It is available over-the-counter.

metoclopramide

Metoclopramide is a drug that helps with stomach problems. It can help food move faster through your stomach and reduce nausea.

What It Treats
acetaminophen

This medicine temporarily relieves minor aches and pains. It can help with headaches, the common cold, backaches, and minor arthritis pain. It can also help with toothaches, muscle aches, premenstrual and menstrual cramps. Acetaminophen can also temporarily reduce fever.

metoclopramide

This medicine treats heartburn caused by acid reflux when other treatments don't work. It also helps with symptoms of slow stomach emptying in people with diabetes, like nausea, vomiting, and feeling full. This medicine is for adults and should not be used for more than 12 weeks.

How It Works
acetaminophen

Acetaminophen's exact mechanism is not fully understood. It is believed to work in the brain to reduce pain signals. It also helps to lower body temperature when you have a fever.

metoclopramide

Metoclopramide helps your stomach muscles move faster. This helps food empty from your stomach more quickly. It also blocks a chemical in your brain that causes nausea.

Common Side Effects
acetaminophen
  • Headache
  • Nausea
metoclopramide
  • Restlessness
  • Drowsiness
  • Fatigue
  • Feeling tired
FAERS Reports
acetaminophen
  • Fatigue 34,487
  • Nausea 29,567
  • Headache 28,380
  • Pain 28,314
  • Diarrhoea 23,626
metoclopramide
  • Tardive Dyskinesia 13,205
  • Extrapyramidal Disorder 11,628
  • Nervous System Disorder 7,175
  • Dystonia 6,661
  • Pain 4,666
Serious Warnings
acetaminophen

Taking more acetaminophen than directed can cause liver damage. Follow the dosage instructions carefully.

metoclopramide

Metoclopramide can cause a serious movement disorder called tardive dyskinesia. This may not go away even after you stop taking the medicine. The risk of tardive dyskinesia increases with long-term use and high doses. Call your doctor right away if you have uncontrolled muscle movements.

Pregnancy
acetaminophen

If you are pregnant or breastfeeding, talk to your doctor before using this medicine. They can help you weigh the risks and benefits.

metoclopramide

Tell your doctor if you are pregnant or plan to become pregnant. It is not known if this medicine will harm your unborn baby. Talk to your doctor about the risks and benefits of taking this medicine while breastfeeding.

How to Read This acetaminophen vs metoclopramide Comparison

acetaminophen is classified in the Analgesic / Antipyretic drug class, while metoclopramide sits within the Prokinetic / Antiemetic class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are split between OTC and prescription status, which affects access and supervision.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, acetaminophen has 144,374 submissions while metoclopramide has 43,335. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to metoclopramide makes your stomach empty faster, which causes the pain reliever to be absorbed into your body more quickly.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for acetaminophen or metoclopramide.

Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.