Dual 5α-reductase inhibitor (type 1 and type 2)
Dutasteride dosage guide: how much to take and when
Choosing the right dose of Dutasteride (Dutasteride) is the most important practical decision after starting therapy. Dutasteride is supplied as capsule in 0.5mg, and the right dose for a given person depends on the indication, age, comorbidities and tolerance to the active ingredient Dutasteride.
Starting dose and titration
According to the prescribing information, most adults begin Dutasteride at the lowest available strength of 0.5mg 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. Dutasteride irreversibly inhibits both isoenzymes of 5α-reductase, the enzyme that converts testosterone to dihydrotestosterone (DHT). 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 Dutasteride? ▾
Most adults start Dutasteride at the lowest strength of 0.5mg, 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 Dutasteride if it isn't working? ▾
Higher doses of Dutasteride should only be used after consulting the prescriber. Doubling on your own is unsafe, especially with active ingredients in the Dual 5α-reductase inhibitor (type 1 and type 2) class. The prescriber can confirm whether titration is appropriate or whether the medication needs to be changed.
Products containing Dutasteride
More on Dutasteride
- With alcoholDutasteride and alcohol — is it safe to drink?
- With foodShould Dutasteride be taken with food?
- Side effectsDutasteride side effects: common, rare and warning signs
- OnsetHow fast does Dutasteride start working?
- DurationHow long does Dutasteride last?
- Missed doseWhat to do if you miss a dose of Dutasteride
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.