repaglinide vs rifampin
Side-by-side comparison of repaglinide 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
Examples: Drugs that induce the CYP3A4 and/or 2C8 enzyme systems include rifampin, barbiturates, and carbamezapine Drugs That May Increase the Risk of Hypoglycemia Intervention: Repaglinide dose reductions and increased frequency of glucose monitoring may be required when co-administered.
Recommendation: Your doctor may need to adjust your repaglinide dose and you should monitor your blood sugar more closely.
Prandin
Rifadin
Repaglinide (Prandin) helps control blood sugar in adults with type 2 diabetes. It works best when used with diet and exercise.
Rifampin is an antibiotic medicine. It fights bacteria in your body to treat infections.
Repaglinide is used to lower blood sugar in adults with type 2 diabetes. It should be used along with a healthy diet and regular exercise. This medicine is not for people with type 1 diabetes or diabetic ketoacidosis.
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.
Repaglinide helps your pancreas release insulin after you eat. Insulin helps move sugar from your blood into your cells. This lowers your blood sugar levels.
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.
- • Low blood sugar
- • Upper respiratory infection
- • Headache
- • Sinus infection
- • Joint pain
- • Heartburn
- • Upset stomach
- • Loss of appetite
- • Nausea
- • Vomiting
- Low blood sugar 765
- Sudden kidney damage 548
- Interaction with another medicine 417
- Diarrhea 365
- Lactic acidosis (buildup of lactic acid) 364
- Drug Interaction 970
- Drug Reaction With Eosinophilia And Systemic Symptoms 727
- Nausea 628
- Condition Aggravated 550
- Pyrexia 541
Repaglinide can cause low blood sugar (hypoglycemia). If you skip a meal, skip your dose of repaglinide to avoid low blood sugar. Do not use repaglinide with NPH-insulin. There is no proof that repaglinide lowers your risk of heart problems.
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. Poorly controlled diabetes during pregnancy can harm both the mother and the baby. Repaglinide is not recommended while breastfeeding due to the risk of low blood sugar in the baby.
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 repaglinide vs rifampin Comparison
repaglinide is classified in the Meglitinide 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, repaglinide has 2,459 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 changes how your body processes repaglinide, which can increase the risk of your blood sugar dropping too low.. 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 repaglinide 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.