How many times a day should you take pirfenidone/asri? Correct dosage and dosage adjustment guide

Pirfenidone is usually given as an oral medication in the treatment of idiopathic pulmonary fibrosis (IPF). Esbriet is its trade name. In clinical use, doctors will adjust the dosage according to the patient's specific condition, weight and drug tolerance. Proper administration and dosage adjustments are critical to maximizing the effectiveness of medications and minimizing side effects.

Generally, the recommended starting dose of pirfenidone is 267 mg three times daily, which means patients take a total of 800 mg of the drug per day. During the first 14 days of treatment, patients need to gradually increase the dose, that is, from 267 mg three times a day to 534 mg three times a day. Ultimately, patients were able to maintain a dose of 534 mg three times daily (i.e., a total daily dose of 1,602 mg). This gradual dose adjustment is designed to help patients better adapt to the drug and reduce the occurrence of side effects, especially digestive system reactions, such as nausea and vomiting.

When taking pirfenidone, patients should follow several recommendations: First, the drug should be taken with meals, as this can reduce the risk of gastrointestinal upset; second, patients need to ensure that the intervals between doses are consistent, which helps maintain stable drug concentrations in the body. For those patients who are new to treatment, it is important to gradually increase the dose to reduce the incidence of gastrointestinal side effects.

For patients who have been taking it for a period of time, if serious adverse reactions or poor tolerance occur, the doctor may adjust the dose according to the patient's specific situation. In some cases, the dose of the drug may need to be reduced or even temporarily stopped until side effects are relieved.

Reference materials:https://www.esbriet.com/