probenecid vs valganciclovir
Side-by-side comparison of probenecid and valganciclovir. 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
Didanosine ↔ Ganciclovir ↑ Didanosine Patients should be closely monitored for didanosine toxicity (e.g., pancreatitis) Probenecid ↑ Ganciclovir Valganciclovir dose may need to be reduced. ( 7 ) Probenecid: May increase ganciclovir levels.
Recommendation: Your doctor may need to lower your dose of valganciclovir to keep the drug at a safe level in your body.
Benemid
Valcyte
No summary available.
Valganciclovir is an antiviral medicine. It helps prevent cytomegalovirus (CMV) disease in children who have received kidney or heart transplants.
Information not available.
This medicine prevents CMV disease in children after they get a kidney or heart transplant. CMV is a virus that can cause problems in people with weakened immune systems. Valganciclovir helps to stop the virus from growing and causing illness.
Information not available.
Valganciclovir changes into ganciclovir in your body. Ganciclovir stops CMV from making copies of itself. This helps to prevent or treat CMV infections.
- • Diarrhea
- • Nausea
- • Yeast infection of the vagina
- • Headache
- • Vomiting
- • Diarrhea
- • Fever
- • Upper respiratory infection
- • Urinary tract infection
- • Vomiting
- Diarrhea 76
- Difficulty breathing 52
- Adenovirus infection 47
- Weakness 47
- Tiredness 46
- CMV infection 1,756
- Low white blood cell count 1,096
- Fever 940
- Diarrhea 916
- Low white blood cell count 914
No specific warnings noted.
Valganciclovir can cause serious side effects, including: - Lowered blood cell counts. This can lead to infections and bleeding. - Fertility problems in both men and women. - Birth defects if taken during pregnancy. - Cancer. Talk to your doctor about these risks.
No pregnancy information available.
This medicine can cause birth defects. Do not take it if you are pregnant or plan to become pregnant. Breastfeeding is not recommended while taking this medicine.
Also Compare, Nearby Drugs
Compare valganciclovir with
How to Read This probenecid vs valganciclovir Comparison
probenecid is classified in the Uricosuric Agent drug class, while valganciclovir sits within the Antiviral (Nucleoside Analog) 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, probenecid has 268 submissions while valganciclovir has 5,622. 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 probenecid makes it harder for the body to remove ganciclovir, which can lead to higher amounts of the drug staying in your blood.. 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 probenecid and valganciclovir - 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.