Taking tinidazole and clarithromycin, if there is a related effect with other drugs, usually need to be about 24-28 hours apart; if there is no interaction with other drugs, you can not need to take time between doses. 1. Tinidazole belongs to antiprotozoal and antibacterial drugs. It is mainly used in the treatment of trichomoniasis, bacterial vaginitis and other diseases. It reaches peak blood concentration about 2 hours after use, and its half-life is about 12~14 hours. Dizziness, diarrhea, palpitations (rapid heartbeat, often accompanied by panic) and other discomforts may occur after taking the drug, and it is prohibited for those who are allergic to the components of the drug. When taking the drug, you need to pay attention to avoid taking with food, and nursing women, pregnant women need to use the drug under the guidance of a doctor. 2. Clarithromycin is a macrolide antibiotic, mainly used for nasopharyngeal infections, lower respiratory tract infections and other diseases. It reaches the peak blood concentration in about 3 hours after use, and the half-life of the drug is about 9 hours. The drug may cause abdominal pain, nausea, dizziness and other discomforts after taking it. It is contraindicated for those who are allergic to macrolides and those with severe liver function impairment. In the process of taking the drug, it is necessary to pay attention to the liver and kidney function damage, while pregnant women and lactating women need to use the drug under the guidance of the doctor. In summary, after taking tinidazole and clarithromycin, it usually takes about 24 to 28 hours to be able to metabolize it; if there is interaction with other medications, there should be an interval of about 24 to 28 hours; if there is no interaction, there can be no interval time. Drugs should be used in accordance with medical advice.