clopidogrel vs rifampin
Side-by-side comparison of clopidogrel and rifampin. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
moderate Known Drug Interaction
Rifampin strongly induces CYP2C19 resulting to both an increase level of clopidogrel active metabolite and platelet inhibition, which in particular might potentiate the risk of bleeding.
Recommendation: Your doctor should monitor you closely for signs of bleeding while taking these drugs together. They may need to adjust your treatment plan to ensure your safety.
Plavix
Rifadin
Clopidogrel is a drug that helps to prevent blood clots. It is used to lower your risk of heart attack and stroke.
Rifampin is an antibiotic medicine. It fights bacteria in your body to treat infections.
Clopidogrel is used to prevent heart attack and stroke in adults. It is for people who have had a recent heart attack or stroke. It is also for people with peripheral arterial disease (poor circulation). Clopidogrel can also help people with chest pain or certain heart problems.
Rifampin treats tuberculosis (TB) and helps eliminate the bacteria that cause meningitis from your nose and throat. It is important to use rifampin only for infections that are proven or strongly suspected to be caused by bacteria. This helps to prevent bacteria from becoming resistant to the medicine.
Clopidogrel keeps blood platelets from sticking together and forming clots. It blocks a substance that causes platelets to clump. This helps blood flow more freely through your body.
Rifampin works by stopping bacteria from growing and multiplying. It does this by blocking a key enzyme that the bacteria need to make proteins. This helps your body fight off the infection.
- • Bleeding
- • Heartburn
- • Upset stomach
- • Loss of appetite
- • Nausea
- • Vomiting
- Shortness of breath 9,917
- Heart attack 9,461
- Tiredness 8,476
- Bleeding in the stomach or intestines 8,205
- Feeling sick to your stomach 7,878
- Drug Interaction 970
- Drug Reaction With Eosinophilia And Systemic Symptoms 727
- Nausea 628
- Condition Aggravated 550
- Pyrexia 541
This drug may not work well for people with certain genes. If you have two copies of a certain gene, clopidogrel may not prevent clots as well. Your doctor may consider a different medicine for you.
Rifampin can cause liver problems. Tell your doctor right away if you have yellowing of the skin or eyes, dark urine, or stomach pain. Rifampin can also cause blood problems. Tell your doctor if you have unusual bleeding or bruising.
Tell your doctor if you are pregnant or plan to become pregnant. Clopidogrel may increase bleeding during labor and delivery. Talk to your doctor about the risks and benefits of taking this medicine while pregnant or breastfeeding.
Tell your doctor if you are pregnant or plan to become pregnant. Rifampin can make birth control pills less effective, so use other forms of birth control. Talk to your doctor if you are breastfeeding.
How to Read This clopidogrel vs rifampin Comparison
clopidogrel is classified in the Antiplatelet Agent drug class, while rifampin sits within the Rifamycin Antibiotic class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, clopidogrel has 43,937 submissions while rifampin has 3,416. 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 moderate interaction flagged in FDA labeling, attributed to rifampin speeds up the process that turns clopidogrel into its active form in the body. this leads to higher levels of the active drug, which can make your blood too thin and increase the risk of bleeding.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between clopidogrel and rifampin - always consult your physician or pharmacist first.
Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.