Doxycycline Hydrochloride Enteric Capsules are not harmful when taken in accordance with medical advice, but pregnant women, patients with poor liver and kidney function should be used with caution. Doxycycline Hydrochloride Enteric Capsules belongs to the antibiotic class of drugs, after taking will kill the body bacteria, parasites, mostly used to treat pneumonia, gastritis, dysentery and other diseases. At present, according to clinical experiments, doxycycline hydrochloride enteric-coated capsules can cause nausea, vomiting, diarrhea, fatigue, palpitations, insomnia and other adverse reactions, and in severe cases, even cause shock, but the chance of occurrence is not high. Doxycycline Hydrochloride Enteric Capsules are mainly metabolized by the liver and kidney, so for patients with poor renal function, must be used with caution, in addition, Doxycycline Hydrochloride Enteric Capsules can enter the fetus through the placental barrier, causing fetal malformation, so pregnant women should also be used with caution. To be used under the guidance of a physician.