The adverse reaction of rapid heart rate may occur after taking Trimethoprim Maleate. If rapid heart rate occurs, you need to stop taking the medicine immediately and consult the doctor in the hospital in time. Currently, the commonly used dosage forms of Trimethoprim Maleate include tablets, capsules, dispersible tablets and other five dosage forms. Clinically, it is mainly used to improve the symptoms of loss of appetite, belching (burping), abdominal distension, diarrhea, nausea, vomiting, abdominal pain, constipation and other symptoms caused by gastrointestinal tract dysfunction. It can also be taken by patients with Irritable Bowel Syndrome (IBS) when they develop these conditions. It is contraindicated in patients who are allergic to trimethoprim maleate. Use with caution in children, pregnant and lactating women, the elderly and patients with allergies. Adverse reactions such as tachycardia, thirst, dizziness, headache, nausea, vomiting, hepatic impairment, rash, urticaria, itching, drowsiness, and difficulty in urination may occur in some patients after taking the drug. If patients experience tachycardia after taking Trimethoprim Maleate, patients need to stop taking the drug in time to avoid adverse reactions. Patients are advised to drink more water to accelerate drug metabolism. Patients need to consult the hospital in a timely manner to avoid delaying the condition.