What fluconazole dose do adults typically take?
Common adult dosing depends on the infection type and whether it’s mucosal (thrush) or more serious (systemic/fungal invasive disease). Typical regimens used clinically include:
- Vaginal yeast infection: 150 mg by mouth once.
- Oral thrush (or other mucosal candidiasis): often 200 mg on day 1, then 100 mg daily.
- Esophageal candidiasis: often 200 mg daily (sometimes started with a higher day-1 dose depending on local guidance).
- Cryptococcal infections (usually require longer courses and may differ by regimen): dosing is typically higher than for thrush and is tailored to severity and concurrent therapy.
If you tell me the specific condition you’re treating (e.g., vaginal yeast vs. oral thrush vs. esophageal candidiasis, and whether it’s an adult or child), I can narrow this to the most relevant regimen.
How is fluconazole dose different for children?
Pediatric dosing is usually calculated by weight (mg/kg) and varies by infection type (mucosal vs. systemic). The starting dose and length of therapy often differ from adult regimens, so it’s important to use a weight-based guideline and clinician direction.
If you share the child’s age/weight and the diagnosis, I can help map what the dose typically is for that scenario.
Does kidney disease change the fluconazole dose?
Yes. Fluconazole is cleared through the kidneys, so reduced kidney function often leads clinicians to lower the daily dose or extend the dosing interval. The exact adjustment depends on your kidney function (often creatinine clearance or eGFR).
If you share your latest creatinine/eGFR (or your clinician’s stated kidney function category), I can explain how dosing usually gets adjusted.
What happens if you miss a dose?
How to handle a missed dose depends on timing:
- If you remember soon after missing it, you typically take it when you remember.
- If it’s close to the next dose, you usually skip the missed dose and continue with the regular schedule.
Never double up without specific medical advice.
Are there dosing differences for fluconazole forms (tablet vs. suspension)?
The active drug amount is what matters. Tablets and oral suspensions are dosed in the same mg, but the suspension concentration affects how many mL you measure. If you tell me the product strength (e.g., mg per tablet or mg/5 mL suspension), I can convert the dose to mL.
What side effects make people stop or seek urgent care?
Seek urgent help if you develop signs of serious allergic reaction or severe liver problems (e.g., rash with swelling, trouble breathing, yellowing of skin/eyes, dark urine, severe fatigue). Fluconazole can also affect heart rhythm in some people (QT prolongation), especially with certain other medications or electrolyte problems.
Drug interactions that can affect dosing safety
Fluconazole can interact with several common drugs, sometimes requiring dose changes or closer monitoring. Examples include:
- Warfarin (bleeding risk changes)
- Some heart-rhythm drugs
- Certain anti-seizure meds
- Some oral diabetes meds and transplant-related immunosuppressants (tacrolimus/cyclosporine in particular)
If you list your medications (even just the names), I can flag common interaction risks that might change safe dosing.
What dose is used for the most common real-world scenario?
For many people searching “fluconazole dosage,” the most common indication is uncomplicated vaginal yeast:
- 150 mg by mouth once.
Still, dosing can differ for recurrent infections, pregnancy, severe disease, or non-vaginal fungal infections.
Sources: None provided in the prompt. If you want, tell me the exact infection/diagnosis (and age/weight and kidney status), and I’ll give the most appropriate dosing regimen.