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nateglinide vs rifampin

Side-by-side comparison of nateglinide 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

Drugs and Herbals That May Reduce the Blood-Glucose-Lowering Effect of Nateglinide and Increase Susceptibility to Hyperglycemia Drugs: Thiazides, corticosteroids, thyroid products, sympathomimetics, somatropin, somatostatin analogues (e.g., lanreotide, octreotide), and CYP inducers (e.g., rifampin, phenytoin and St John's Wort).

Recommendation: Your doctor may need to increase your nateglinide dose or monitor your blood sugar levels more often.

Drug Class
nateglinide Meglitinide
rifampin Rifamycin Antibiotic
Type
nateglinide Prescription
rifampin Prescription
Summary
nateglinide

Nateglinide (Starlix) helps control blood sugar in adults with type 2 diabetes. It should be used with diet and exercise.

rifampin

Rifampin is an antibiotic medicine. It fights bacteria in your body to treat infections.

What It Treats
nateglinide

Nateglinide is used to help lower blood sugar in adults who have type 2 diabetes. You should also follow a diet and exercise plan while taking this medicine. Nateglinide should not be used if you have type 1 diabetes or diabetic ketoacidosis.

rifampin

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.

How It Works
nateglinide

Nateglinide helps your pancreas release insulin after you eat. Insulin helps move sugar from your blood into your cells. This lowers your blood sugar levels after meals.

rifampin

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 Side Effects
nateglinide
  • Upper respiratory infection
  • Back pain
  • Flu symptoms
  • Dizziness
  • Joint pain
rifampin
  • Heartburn
  • Upset stomach
  • Loss of appetite
  • Nausea
  • Vomiting
FAERS Reports
nateglinide
  • High blood sugar 76
  • Diarrhea 63
  • Difficulty breathing 62
  • Tiredness 56
  • Feeling sick to your stomach 54
rifampin
  • Drug Interaction 970
  • Drug Reaction With Eosinophilia And Systemic Symptoms 727
  • Nausea 628
  • Condition Aggravated 550
  • Pyrexia 541
Serious Warnings
nateglinide

Nateglinide can cause low blood sugar (hypoglycemia). Take it before meals and skip the dose if you skip the meal to help prevent this. There have been no studies showing that nateglinide lowers your risk of heart or blood vessel problems.

rifampin

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.

Pregnancy
nateglinide

It is not known if nateglinide can harm your unborn baby. Talk to your doctor if you are pregnant or plan to become pregnant. Nateglinide is not recommended if you are breastfeeding because it may cause low blood sugar in the baby.

rifampin

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.

Also Compare, Nearby Drugs

Compare nateglinide with

How to Read This nateglinide vs rifampin Comparison

nateglinide 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, nateglinide has 311 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 causes your body to process and remove nateglinide faster than normal. this can make the medicine less effective at lowering your blood sugar, leading to high blood sugar levels.. 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 nateglinide 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.