What is the dosage of Dacomitinib? Does the dose need to be adjusted according to different conditions?

Dacomitinib is a targeted therapy drug mainly used to treat non-small cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) mutations. According to the drug instructions, the standard dose of dacomitinib is taken orally once a day, and the conventional dose is 45mg, which can be taken before or after a meal. In order to ensure the efficacy of the drug, patients need to take the drug strictly according to the doctor's instructions and regularly monitor their treatment response.

During the course of treatment, the patient's condition may change, especially when side effects occur, and the doctor will adjust the dosage according to the patient's tolerance. For example, if a patient experiences severe side effects (such as rash, diarrhea, mouth ulcers, etc.), the doctor may reduce the dose or temporarily stop the drug based on the specific situation, and then readjust the dose after the side effects subside. For drug-resistant patients, it may also be necessary to adjust the treatment plan, switch to other targeted drugs, or perform combination therapy.

Patients should avoid adjusting the dosage on their own, and any dosage changes should be made under the guidance of a physician. If a dose is missed, the patient should take the remaining dose as soon as possible, but if it is close to the next dose time, the missed dose should be skipped and the patient should continue taking the dose as scheduled. When using dacomitinib, patients need to undergo regular blood tests, including liver and kidney function and routine blood tests, to evaluate the effect of the drug and its impact on the body.

In short, the use of dacomitinib needs to be individually adjusted according to the patient's specific condition and used strictly in accordance with the doctor's instructions to ensure the best therapeutic effect and minimize side effects.

Reference materials:https://www.pfizer.com/products/product-detail/vizimpro