In general, if the next day after taking Clarithromycin extended-release capsules discharged from the stool is an abnormal situation. Clarithromycin and metabolite elimination half-life approximate 5.3 and 7.7 hours, respectively, after eating the next day from the stool is mainly because this drug in the body, the body can not be metabolized, only with the intestinal metabolite discharge, and can not play a corresponding therapeutic effect, so not normal. This situation may be due to the irregularity of taking clarithromycin extended-release capsules, its capsule shell and can not be dissolved under the action of the body’s digestive juices. Common adverse reactions to Clarithromycin Extended-Release Capsules include dizziness, tinnitus, arthralgia, and it should be noted that the use of this drug is contraindicated in people who are allergic to Clarithromycin, and those with severe renal impairment. The application of the drug should be carried out under the guidance of professionals, remember to buy drugs through regular channels, do not use on their own, or arbitrarily increase or decrease the dose.