Loperamide hydrochloride capsule, loperamide hydrochloride capsule and montelukast are different in composition, indications, adverse reactions and contraindications. 1. Different ingredients: the main active ingredient of loperamide hydrochloride capsules is loperamide hydrochloride, and the main ingredient of montelukast is montmorillonite, with glucose, aspartame, vanillin and other auxiliary materials. 2. Different indications: loperamide hydrochloride capsules are mainly used to control the symptoms of acute and chronic diarrhea, as well as ileostomy patients can reduce the volume and frequency of defecation, increase the hardness of stool consistency, montmorillonite powder is used for adults as well as children with acute and chronic diarrhea. 3. Adverse reactions are different: loperamide hydrochloride capsules in the use of the process, there may be nausea, vomiting, constipation, dizziness, dyspepsia and other adverse reactions, montelukast may lead to some patients with mild constipation. 4. Different contraindications: allergic to loperamide hydrochloride capsules, acute ulcerative colitis, acute bacillary dysentery and other patients are prohibited, and allergic to montelukast is prohibited. It is recommended that patients under the guidance of a doctor, strictly follow the instructions of the doctor to use drugs, not blindly use drugs or change the dose of drugs without authorization, so as not to cause adverse effects on the body, triggering other diseases.