Doxycycline is a common antibiotic prescribed to fight different infections, from respiratory issues to skin problems. But dosing it right is key to making sure the medicine works without causing extra problems. The amount and frequency depend on the infection type, your age, and sometimes weight.
For adults, doxycycline is usually taken at 100 mg twice daily. Doctors may start with a higher dose on the first day, known as a loading dose, then go down to 100 mg daily or twice daily. Children’s doses are often based on weight, typically around 2 to 4 mg per kilogram of body weight daily, split into two doses.
Take doxycycline with a full glass of water to avoid irritation in your throat or stomach. It’s best to stay upright for at least 30 minutes after taking it. Avoid calcium-rich foods or supplements, and antacids within 2 hours of your dose, as they can mess with how much medicine gets absorbed.
Usually, you take doxycycline on an empty stomach either 1 hour before or 2 hours after meals, but if stomach upset occurs, you might take it with food. Stick to the exact dose and schedule your doctor gave you, and finish the whole course even if you feel better early—that prevents the infection from coming back or bacteria becoming resistant.
Doxycycline can make your skin more sensitive to the sun. So, when you’re taking it, wear sunscreen and avoid long sun exposure to dodge painful sunburns. Also, tell your doctor about any other medicines or supplements you take—some might interfere with doxycycline’s action.
Remember, never double up if you miss a dose. Just take it as soon as you remember unless it’s almost time for the next dose. Also, don’t share your doxycycline with anyone else. If side effects like severe stomach pain, yellowing skin or eyes, or allergic reactions happen, get medical help right away.
Doxycycline is a trusted antibiotic when used correctly. Understanding the right dose, timing, and precautions can help you get better without trouble. Always consult your healthcare provider if you’re unsure about any part of your treatment.