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Probe · finasteride · 3 min read

Does food change finasteride 1 mg?

No. Finasteride 1 mg may be administered with or without meals. Food did not change bioavailability of the 1 mg tablet in the labelled study. Mean bioavailability was 65% versus an IV reference, range 26-170%, in 15 healthy young men. Finpecia 1 mg does not need an empty-stomach ritual. Pick a clock you can repeat. Do not double the next day because breakfast never happened.

Medically reviewed by Dr. Mateo Ruiz, MD - Clinical pharmacology, Barcelona

Last reviewed

Updated

01What the 65% bioavailability range already includes

Forest-green still life: tablet with and without a bread crust, same place

The 26-170% range was measured on the 1 mg tablet. Food did not move that bioavailability. Chasing the top of the range with a special plate is not a labelled maneuver.

Steady-state Cmax after 1 mg/day averaged 9.2 ng/mL at 1 to 2 hours in 12 men. That timing is PK, not a meal hold.

02What 'with or without meals' means at breakfast

The labelled sentence is permission, not a pairing. Eggs do not boost the 1 mg tablet. Skipping breakfast does not either. Swallow the tablet once that day.

Men who chase a 'fasted peak' are borrowing a different drug's story. This INN's food line is flat.

03Why a same-hour habit still helps

Once daily is the dose frequency. A repeated clock is how people remember the tablet. It is not a faster onset trick.

If dinner is the hour you never miss, take 1 mg then. If morning is the hour, take it then. Food does not pick the hour.

04What if you skip the meal you usually pair?

Swallow the 1 mg tablet anyway. The meal was never required. Do not double the next day to 'make up' a skipped supper.

The once-daily note is the frequency page. This one only answers food.

05Was food tested on the 1 mg tablet?

Yes. Bioavailability of finasteride was not affected by food. Mean bioavailability of the 1 mg tablet was 65% (range 26-170%) versus an IV reference in 15 healthy young men.

That range is why one man should not copy another man's 'empty stomach trick'. The label already allowed both fed and fasted swallows.

06Does Finpecia 1 mg need a fasting window?

No. Export branding does not add a food lock. If the carton is finasteride 1 mg, meals stay optional.

A blog that tells you to hold coffee for an hour is not in Dosage and Administration. The 1 mg vault stays on the meal-optional line.

Sources

  1. DailyMed PROPECIA (finasteride) 1 mg
  2. US Propecia PI sections 2 and 12.3 (food and bioavailability).

Checked against the current label and reviewed by Dr. Mateo Ruiz. See Probe, Assay, Glow-check, Seal.

Vault consult

Answers follow the U.S. Propecia label.

Rosa Q. Should I take Finpecia 1 mg on an empty stomach like thyroid hormone?

Vault reply

No. Finasteride 1 mg may be taken with or without meals. Food did not affect bioavailability. Thyroid-style fasting is a different label.

Ilya G. Does a heavy dinner delay the 1 mg tablet?

Vault reply

The food study on the 1 mg tablet found bioavailability unmoved. The label does not add a high-fat delay for this INN.

Niamh C. I usually swallow with breakfast and I skipped breakfast. Wait?

Vault reply

Do not wait. Take the 1 mg tablet. Meals are optional. Do not take a second tablet later because the first meal never happened.

Before you start, stop, or change any medicine, speak with your prescriber or pharmacist - they hold your chart, this vault card does not. Open the vault disclaimer.