glipizide vs rifampin
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Side-by-side comparison of glipizide 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
Glipizide Decrease exposure Immunosuppressive Agents Cyclosporine Decrease exposure Tacrolimus Prevention or Management: Monitoring of whole blood concentrations and appropriate dosage adjustments of tacrolimus are recommended when rifampin and tacrolimus are used concomitantly.
Glipizide is a medicine that helps lower blood sugar in adults with type 2 diabetes. It works along with diet and exercise.
Rifampin is an antibiotic medicine. It fights bacteria in your body to treat infections.
Glipizide is used to improve blood sugar control in adults who have type 2 diabetes. It is meant to be used in addition to diet and exercise. This medicine helps your body use insulin better and lowers blood sugar levels.
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.
Glipizide belongs to a class of drugs called sulfonylureas. It works by helping your pancreas release more insulin. Insulin then helps your body use sugar from the food you eat.
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.
- • Nausea
- • Diarrhea
- • Skin rash
- • Dizziness
- • Drowsiness
- • Heartburn
- • Upset stomach
- • Loss of appetite
- • Nausea
- • Vomiting
- Blood Glucose Increased 6,677
- Nausea 4,444
- Diarrhoea 3,265
- Fatigue 2,994
- Weight Decreased 2,812
- Drug Interaction 970
- Drug Reaction With Eosinophilia And Systemic Symptoms 727
- Nausea 628
- Condition Aggravated 550
- Pyrexia 541
Glipizide can cause low blood sugar (hypoglycemia). Watch for symptoms like shakiness, sweating, confusion, and rapid heartbeat. If you have very low blood sugar, get medical help right away. Certain drugs can increase the risk of low blood sugar. Tell your doctor about all the medicines you take.
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. It is not known if glipizide will harm your unborn baby. Talk to your doctor about the best way to control your blood sugar during pregnancy. It is not recommended to breastfeed while taking this medication.
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 glipizide vs rifampin Comparison
glipizide is classified in the Sulfonylurea 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, glipizide has 20,192 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 the liver's ability to break down glipizide, which lowers the amount of medicine in your blood.. 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 glipizide or rifampin.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.