Diflucan dosage guide: how much to take and when
Choosing the right dose of Diflucan (Fluconazole) is the most important practical decision after starting therapy. Diflucan is supplied as capsule, oral suspension in 50mg, 100mg, 150mg, 200mg, and the right dose for a given person depends on the indication, age, comorbidities and tolerance to the active ingredient Fluconazole.
Starting dose and titration
According to the prescribing information, most adults begin Diflucan at the lowest available strength of 50mg, 100mg, 150mg, 200mg and titrate up only if symptom control is insufficient and tolerability is good. Higher doses are reserved for selected cases. Older adults, people with renal or hepatic impairment, and those taking interacting medications should usually start at the lowest dose.
When to adjust
Dose adjustment is guided by symptom response and side effect burden, not by arbitrary schedules. Fluconazole is a triazole antifungal that inhibits the cytochrome P450-dependent enzyme lanosterol 14-alpha-demethylase, blocking the synthesis of ergosterol from lanosterol. If side effects are limiting at a given dose, going down a step is usually preferred over stopping abruptly. If the response is incomplete after several weeks, a higher dose can be tried under medical supervision.
Frequently asked questions
What is the standard starting dose of Diflucan? ▾
Most adults start Diflucan at the lowest strength of 50mg, 100mg, 150mg, 200mg, with adjustment based on symptom response and tolerance. Older adults and those with reduced kidney or liver function generally start lower. The prescriber decides the exact starting dose for each person.
Can I take a higher dose of Diflucan if it isn't working? ▾
Higher doses of Diflucan should only be used after consulting the prescriber. Doubling on your own is unsafe, especially with active ingredients in the Antifungal Medications class. The prescriber can confirm whether titration is appropriate or whether the medication needs to be changed.
More on Diflucan
- With alcoholDiflucan and alcohol — is it safe to drink?
- With foodShould Diflucan be taken with food?
- Side effectsDiflucan side effects: common, rare and warning signs
- OnsetHow fast does Diflucan start working?
- DurationHow long does Diflucan last?
- Missed doseWhat to do if you miss a dose of Diflucan
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.