Doxycycline is an antibiotic used for treating bacterial infections.
The drug is also sold under the brand names Oracea, Doryx, Monodox, Periostat, and Vibramycin. Doxycycline is in a class of medications called tetracyclines, and it’s a broad-spectrum antibiotic, which means it works against a wide range of bacteria.
Doctors prescribe doxycycline to prevent malaria and treat a wide range of infections, including:
Pneumonia and other respiratory tract infections
Infections involving the genitals and urinary tract infections (UTI)
Anthrax (after inhalational exposure) Doxycycline works by preventing the growth and spread of bacteria. Like all antibiotics, doxycycline will not treat colds, the flu, or other infections caused by viruses or fungi. A 2014 study found that a low dose of 40 milligrams (mg) of slow-release doxycycline daily could be an effective and safe therapy for ocular rosacea, or rosacea that affects the eyes. The drug company Pfizer developed doxycycline in the early 1960s, and the Food and Drug Administration (FDA) approved the drug in 1967 under the brand name Vibramycin. In 1994 the FDA also approved the drug to prevent malaria.
[/vc_column_text][/vc_tta_section][vc_tta_section title=”Use” tab_id=”1500389328750-d09ab9ad-1d93″][vc_column_text]This medication is used to treat a wide variety of bacterial infections, including those that cause acne. This medication is also used to prevent malaria. This medication is known as a tetracycline antibiotic. It works by stopping the growth of bacteria. This antibiotic treats only bacterial infections. It will not work for viral infections (such as common cold, flu). Unnecessary use or misuse of any antibiotic can lead to its decreased effectiveness. OTHER USES: This section contains uses of this drug that are not listed in the approved professional labeling for the drug but that may be prescribed by your health care professional. Use this drug for a condition that is listed in this section only if it has been so prescribed by your health care professional. This drug may also be used to treat a certain skin condition (rosacea).[/vc_column_text][/vc_tta_section][vc_tta_section title=”How to Take” tab_id=”1500389387696-bdbeacb1-9ee0″][vc_column_text]This medication is best taken by mouth on an empty stomach, at least 1 hour before or 2 hours after a meal, usually 1 or 2 times daily or as directed by your doctor. Take this medication with a full glass of water (8 ounces/240 milliliters) unless directed otherwise. If stomach upset occurs, taking it with food or milk may help. However, doxycycline may not work as well if you take it with food or milk (or anything high in calcium – more details below ), so ask your doctor or pharmacist if you may take it that way. Do not lie down for 10 minutes after taking this medication. Take this medication 2 to 3 hours before or after taking any products containing aluminum, calcium, iron, magnesium, zinc, or bismuth subsalicylate. Some examples include antacids, didanosine solution, quinapril, vitamins/minerals, dairy products (such as milk, yogurt), and calcium-enriched juice. These products bind with doxycycline, preventing your body from fully absorbing the drug. When using to prevent malaria, this medication is usually taken once daily. Take the first dose of this medication 1 to 2 days before travel or as directed by your doctor. Continue to take this medication daily while in the malarious area. Upon returning home, you should keep taking this medication for 4 more weeks. If you are unable to finish this course of doxycycline, contact your doctor. If you are using the liquid form of this medication, shake the bottle well before each dose. Carefully measure the dose using a special measuring device/spoon. Do not use a household spoon because you may not get the correct dose. The dosage is based on your medical condition and response to treatment. For children, the dosage may also be based on weight. Antibiotics work best when the amount of medicine in your body is kept at a constant level. Therefore, take this drug at evenly spaced intervals. Continue to take this medication until the full prescribed amount is finished, even if symptoms disappear after a few days. Stopping the medication too early may allow bacteria to continue to grow, which may result in a return of the infection. Tell your doctor if your condition persists or worsens.[/vc_column_text][/vc_tta_section][vc_tta_section title=”Side Effects” tab_id=”1500389412853-d02a327a-b319″][vc_column_text]Stomach upset, diarrhea, nausea, or vomiting may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Tell your doctor right away if you have any serious side effects, including: sunburn (sun sensitivity), painful/difficult swallowing, change in the amount of urine. Tetracycline drugs such as doxycycline may rarely cause a serious increase in pressure inside the skull (intracranial hypertension-IH). The risk of this side effect is greater for women of childbearing age who are overweight or who have had IH in the past. If IH develops, it usually goes away after doxycycline is stopped; however, there is a chance of permanent vision loss or blindness. Get medical help right away if you have: persistent/severe headache, vision changes (such as blurred/double vision, decreased vision, sudden blindness), persistent nausea/vomiting. This medication may rarely cause a severe intestinal condition (Clostridium difficile-associated diarrhea) due to a type of resistant bacteria. This condition may occur during treatment or weeks to months after treatment has stopped. Do not use anti-diarrhea products or narcotic pain medications if you have any of the following symptoms because these products may make them worse. Tell your doctor right away if you develop: persistent diarrhea, abdominal or stomach pain/cramping, blood/mucus in your stool. Use of this medication for prolonged or repeated periods may result in oral thrush or a new vaginal yeast infection. Contact your doctor if you notice white patches in your mouth, a change in vaginal discharge, or other new symptoms. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.[/vc_column_text][/vc_tta_section][vc_tta_section title=”Precautions” tab_id=”1500389436547-e45a2b4c-4cda”][vc_column_text]Before taking doxycycline, tell your doctor or pharmacist if you are allergic to it; or to other tetracyclines (such as minocycline); or if you have any other allergies. This product may contain inactive ingredients (such as sulfites, soy found in some brands), which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history, especially of: trouble swallowing, esophagus problems (such as hiatal hernia or reflux/heartburn). Before having surgery, tell your doctor or dentist that you are taking this medication. This medication may make you more sensitive to the sun. Avoid prolonged sun exposure, tanning booths, and sunlamps. Use a sunscreen and wear protective clothing when outdoors. Children younger than 8 years may be more sensitive to the side effects of doxycycline, especially tooth discoloration. Tooth discoloration has also occurred in older children and young adults. Discuss the risks and benefits of this medication with the doctor. This medication is not recommended for use during pregnancy. It may harm an unborn baby. Consult your doctor for more details. This drug passes into breast milk but is unlikely to harm a nursing infant. Consult your doctor before breast-feeding.[/vc_column_text][/vc_tta_section][vc_tta_section title=”Drug Interactions” tab_id=”1500389457813-0dc3e294-95e1″][vc_column_text]Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor’s approval. Some products that may interact with this drug include: retinoid medications taken by mouth (such as acitretin, isotretinoin), barbiturates (such as phenobarbital), “blood thinners” (such as warfarin), digoxin, penicillins, anti-seizure medications (such as carbamazepine, phenytoin), strontium, live bacterial vaccines. Although most antibiotics (including doxycycline) are unlikely to affect hormonal birth control such as pills, patch, or ring, a few antibiotics (such as rifampin, rifabutin) can decrease their effectiveness. This could result in pregnancy. If you use hormonal birth control, ask your doctor or pharmacist for more details. This medication may interfere with certain laboratory tests (including urine catecholamine levels), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use this drug.[/vc_column_text][/vc_tta_section][/vc_tta_tabs][/vc_column][/vc_row]