doxycycline vs eravacycline
Side-by-side comparison of doxycycline and eravacycline Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Vibramycin, Doryx
Xerava
Doxycycline is an antibiotic medicine. It fights bacteria in your body to treat different kinds of infections.
Xerava is an antibiotic medicine. It is used to treat complicated infections in the stomach area.
Doxycycline treats many types of infections caused by bacteria. This includes infections like Rocky Mountain spotted fever, typhus, Q fever, and certain respiratory infections. It also treats sexually transmitted infections like gonorrhea and chlamydia, as well as other infections like plague and tularemia.
Xerava treats complicated infections inside your belly (intra-abdominal). It works against bacteria like E. coli and Klebsiella. Xerava is only for adults 18 years and older. It is not for treating complicated urinary tract infections.
Doxycycline belongs to a class of drugs called tetracycline antibiotics. It works by stopping the growth of bacteria. This helps your body fight off the infection.
Xerava is a tetracycline antibiotic. It stops bacteria from growing. This helps your body fight off the infection.
- • Nausea
- • Vomiting
- • Diarrhea
- • Rash
- • Photosensitivity (increased sensitivity to sunlight)
- • Reactions where the IV goes into your body
- • Feeling sick to your stomach (nausea)
- • Throwing up
- The medicine is not working 5,030
- Feeling sick to your stomach 4,770
- Using the medicine for something it's not approved for 4,436
- Feeling tired 4,419
- Skin irritation 3,946
- Off Label Use 62
- Drug Ineffective 24
- Blood Fibrinogen Decreased 16
- Nausea 15
- Thrombocytopenia 14
Doxycycline can cause permanent tooth discoloration if used during tooth development (pregnancy, infancy, childhood up to 8 years old). It can also cause increased pressure inside the skull. Tell your doctor right away if you have blurred vision, double vision, or a severe headache.
Xerava can cause serious allergic reactions. If you are allergic to tetracycline antibiotics, you should not take Xerava. Using Xerava while teeth are developing can cause tooth discoloration. It can also slow bone growth in babies and children under 8.
Doxycycline can harm an unborn baby. Do not use this medicine if you are pregnant. Doxycycline can pass into breast milk and may affect bone and tooth development in the nursing infant. Talk to your doctor about the best way to feed your baby if you are taking this medicine.
Xerava can harm an unborn baby. It can cause tooth discoloration and slow bone growth. Breastfeeding is not recommended while using Xerava.
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How to Read This doxycycline vs eravacycline Comparison
doxycycline is classified in the Tetracycline Antibiotic drug class, while eravacycline sits within the Tetracycline Antibiotic class. Because both drugs share the same classification, they are often considered interchangeable in theory — but clinical outcomes rarely track that cleanly. 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, doxycycline has 22,601 submissions while eravacycline has 131. Those figures reflect cumulative reporting volume — not per-patient risk — so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. 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 doxycycline and eravacycline — 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.