For most adult infections, the typical doxycycline dosage is 100 mg twice daily on the first day, followed by 100 mg once daily. This is usually taken for 7 to 14 days, depending on the specific infection and your doctor’s instructions. Always follow your doctor’s prescribed dosage and duration; never adjust the medication without consulting them.
However, dosage variations exist. Here are some common scenarios:
- Severe infections: Your doctor might prescribe a higher initial dose. Specific infections: Treatment duration may vary based on the infecting organism. For example, Lyme disease treatment might last longer. Kidney problems: Dosage adjustments are often necessary for those with impaired kidney function. Your doctor will calculate the appropriate dose based on your creatinine clearance. Liver problems: Similarly, liver function can affect dosing; your physician will determine the right dose for your situation.
It’s crucial to take doxycycline with a full glass of water and avoid antacids or dairy products within two hours of taking the medication. These can interfere with absorption.
Remember, this information is for general knowledge only. Always consult your doctor or pharmacist for personalized guidance on doxycycline dosage and potential side effects. They can accurately assess your individual needs and provide the best course of treatment.


