Doxycycline is a tetracycline antibiotic which is used to treat a variety of bacterial infections.
Doxycycline is used to treat a wide range of infections caused by bacteria, including chronic prostatitis, sinusitis, syphilis, chlamydia, acne, among others. It is also used to slow the progression of anthrax in the body after exposure to the bacteria.
It is recommended that you do not take Doxycycline right after or with a meal. You may take it an hour before a meal or at least 2 hours after. Do not combine with antacids. Use it for the full course of treatment, even if you feel better in a few days.
If a dose is missed, always take the time before the next scheduled dose into consideration. If it is almost time for your next dose, skip the missed dose and go back to your usual schedule. However, never take a double dose together.
Store it at room temperature and avoid direct exposure to light and moisture.
Although the symptoms of an overdose are not known, it is recommended to seek immediate medical attention if overdose is suspected.
Use only if prescribed and as directed by your doctor.
Warnings / Precautions
Do not use Doxycycline if:
- you are allergic to any ingredient in doxycycline;
- you have recently received or will receive a live oral typhoid vaccine
- you are taking acitretin, oral contraceptives (birth control pills), or penicillins (eg, Cloxacillin).
Contact your doctor or health care provider immediately if any of these apply to you.
Some medical conditions may interact with doxycycline. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:
- if you are pregnant, plan to become pregnant or breastfeeding
- If you are taking any prescription or over the counter medicines, herbal preparation, or dietary supplements
- If you have any allergies to medicines, foods or other substances
- If you have diarrhea, stomach or intestinal infection, a history of lupus, or porphyria, blood disease
Some drugs can interact with doxycycline. Tell your health care provider if you are taking any other medicines, especially any of the following:
- Barbiturates (eg, phenobarbital), carbamazepine, or hydantoins (eg, phenytoin), because Doxycycline may decrease in effectiveness
- Acitretin or isotretinoin due to side effects, such as increased pressure inside the skull (resulting in severe headaches and vision problems) may occur
- Blood thinners (eg, warfarin), digoxin, methotrexate, or methoxyflurane because the risk of their side effects may be increased by doxycycline
- Live oral typhoid vaccine, hormonal contraception (eg, birth control pill), or penicillins (eg, amoxicillin) because their effectiveness may be decreased by doxycycline.
Possible side effects
See your doctor if any of these most common side effects persist or become bothersome:
- loss of appetite, nausea, sensitivity to sunlight; vomiting.
Seek medical attention immediately if any of these serious side effects occur:
severe allergic reactions (rash, hives, itching, difficulty breathing, tightness in the chest, swelling of the mouth, face, lips or tongue; unusual hoarseness), bloody stools, dark urine; decreased urination, fever, chills or sore throat severe diarrhea, severe or persistent headache, stomach pain or cramps, throat irritation, difficulty swallowing; unusual bruising or bleeding, unusual fatigue; irritation of the vagina or emptying, vision changes, yellowing of the skin or eyes.
If you have any questions about Doxycycline, please talk with your doctor, pharmacist, or other health care provider.
Doxycycline is to be used only by the patient for whom it is prescribed. Do not share with other people.
If your symptoms do not improve or if they get worse, see your doctor.