The effects of taking brompheniramine vary from person to person, and patients are advised to take the medication as prescribed by their doctor to try to get better results. The general dosage for adults is 60-120mg (1-2 tablets) taken orally every 3-4 hours. Brompheniramine is mainly used for myasthenia gravis and intestinal flatulence. Because it has a relatively short half-life of about 3 to 4 hours, it is recommended that it be taken every 3 to 4 hours to maintain adequate blood levels in the body and to give better results. Taking brompheniramine may have adverse reactions such as diarrhea, nausea, excessive sweating and mental abnormalities. This drug is contraindicated in patients with bronchial asthma, intestinal obstruction, urinary tract obstruction, angina pectoris; cardiac arrhythmia, pregnant women, use this drug with caution. It is recommended to use brompheniramine under the supervision of a doctor and in accordance with medical advice. Different patients, the need to take the dose is often different, need to be based on the patient’s specific condition by the doctor, to determine the better effect of the drug method.