The generic name of Lejiansu is Compound Alverine Citrate Soft Capsules and the generic name of Trimethoprim is Trimethoprim Maleate Tablets, both drugs can relieve bloating, abdominal pain and other symptoms, the efficacy of the drug is related to the condition, the method of administration and so on, it can not be clearly stated which one is effective. Compound Alverine Citrate Soft Capsules can inhibit gastrointestinal smooth muscle spasm, anti-gastrointestinal flatulence. Trimethoprim maleate tablets can relax the smooth muscle of the gastrointestinal tract and regulate the gastrointestinal rhythm. All of them can relieve symptoms such as gastric distension and stomach pain. If you choose the right drug for the patient’s condition and take it in regular doses on time, you can significantly exert the effect of the drug, and vice versa will affect the effect of the drug. The adverse reactions of compound Alverine Citrate Soft Capsules include urticaria, throat edema, elevated transaminases, etc. It is forbidden for those who are allergic to the drug. Pregnant women as well as lactating women should consult a doctor for medication. Adverse reactions such as thirst and diarrhea may occur with the use of Trimethoprim Maleate Tablets, which is contraindicated for those who are allergic to the drug, and should be used with caution in pregnant as well as lactating women. If you need to use these two drugs, you should choose the right drug for your specific condition under the guidance of your doctor to avoid adverse reactions.