atorvastatin vs rifampin
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Side-by-side comparison of atorvastatin and rifampin. 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
Rifampin: May reduce atorvastatin plasma concentrations. Table 3: Drug Interactions that may Decrease Exposure to Atorvastatin Rifampin Clinical Impact: Concomitant administration of atorvastatin with rifampin, an inducer of cytochrome P450 3A4 and inhibitor of OATP1B1, can lead to variable reductions in plasma concentrations of atorvastatin. Due to the dual interaction mechanism of rifampin, delayed administration of atorvastatin after administration of rifampin has been associated with a significant reduction in atorvastatin plasma concentrations.
Lipitor
Rifadin
Atorvastatin is a drug that lowers cholesterol and reduces the risk of heart problems and stroke. It belongs to a class of drugs called statins.
Rifampin is an antibiotic medicine. It fights bacteria in your body to treat infections.
Atorvastatin is used to lower bad cholesterol (LDL) and triglycerides in your blood. It can help prevent heart attacks, strokes, and the need for heart procedures in adults with heart disease or risk factors for it. It is also used in children 10 years and older with certain inherited cholesterol 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.
Atorvastatin works by blocking a substance your body needs to make cholesterol. This helps to lower the amount of cholesterol in your blood. Lowering cholesterol can help prevent heart disease.
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.
- • Common cold symptoms
- • Joint pain
- • Diarrhea
- • Pain in arms or legs
- • Urinary tract infection
- • Heartburn
- • Upset stomach
- • Loss of appetite
- • Nausea
- • Vomiting
- Fatigue 13,812
- Nausea 12,425
- Type 2 Diabetes Mellitus 11,244
- Diarrhoea 11,037
- Dyspnoea 11,029
- Drug Interaction 970
- Drug Reaction With Eosinophilia And Systemic Symptoms 727
- Nausea 628
- Condition Aggravated 550
- Pyrexia 541
Atorvastatin can cause muscle problems, including muscle pain, tenderness, or weakness. In rare cases, this can lead to serious kidney damage. Tell your doctor right away if you have unexplained muscle pain, tenderness, or weakness, especially if you also have a fever or feel sick. Atorvastatin can also cause liver problems. Your doctor may do blood tests to check your liver before you start taking atorvastatin and while you are taking it.
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.
Atorvastatin can harm an unborn baby. You should not take atorvastatin if you are pregnant or planning to become pregnant. It is also not recommended to breastfeed while taking atorvastatin.
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.
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How to Read This atorvastatin vs rifampin Comparison
atorvastatin is classified in the HMG-CoA Reductase Inhibitor (Statin) 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, atorvastatin has 59,547 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 minor interaction flagged in FDA labeling, attributed to rifampin speeds up how fast your body gets rid of atorvastatin, which can make the statin less effective.. 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 atorvastatin or rifampin.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.