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 Drug Name
Doxycycline (Doxycycline)
Drug Uses
Doxycycline is a tetracycline antibiotic. It fights bacteria in the body.Doxycycline is used to treat many different bacterial infections, such as urinary tract infections, acne, gonorrhea, and chlamydia, periodontitis (gum disease), and others.Doxycycline may also be used for other purposes not listed in this medication guide.
How Taken
Take this medication exactly as it was prescribed for you. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor. Follow the directions on your prescription label.
Take doxycycline with a full glass of water (8 ounces).
You may take this medication with or without food. Do not take the medication with milk or other dairy products, unless your doctor has told you to. Dairy products can make it harder for your body to absorb the medicine. Certain brands of doxycycline may not have restrictions about taking them with dairy products. If your doctor has instructed you to take doxycycline with milk, tell your pharmacist that you need a brand of doxycycline that can be taken with milk.
Do not crush, break, or open a delayed-release capsule (Orecea). Swallow the pill whole. It is specially made to release medicine slowly in the body. Breaking or opening the pill would cause too much of the drug to be released at one time. Shake the oral suspension (liquid) well just before you measure a dose. To be sure you get the correct dose, measure the liquid with a marked measuring spoon or medicine cup, not with a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.
You may take this medication with or without food.
Take this medication for the entire length of time prescribed by your doctor. Your symptoms may get better before the infection is completely treated. Doxycycline will not treat a viral infection such as the common cold or flu. Do not give this medicine to another person, even if they have the same condition you have.
If you need to have any type of surgery, tell the surgeon ahead of time that you are taking doxycycline. You may need to stop using the medicine for a short time.
Throw away any unused doxycycline when it expires or when it is no longer needed. Do not take any doxycycline after the expiration date printed on the label. Using expired doxycycline can cause damage to your kidneys. Store this medication at room temperature away from moisture and heat.
Drug Class and Mechanism
Doxycycline is a synthetic (man-made) antibiotic derived from tetracycline . Doxycycline works by interrupting the production of proteins by bacteria. It is effective against a wide variety of bacteria, such as Hemophilus influenzae , Streptococcus pneumoniae , Mycoplasma pneumoniae , Chlamydia psittaci , Chlamydia trachomatis , Neisseria gonorrhoea , and many others.
Missed Dose
Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at the next regularly scheduled time. Do not take extra medicine to make up the missed dose.
Storage
Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.
Warnings/Precautions
Do not use this medication if you are pregnant. It could cause harm to the unborn baby, including permanent discoloration of the teeth later in life. Doxycycline can make birth control pills less effective. Use a second method of birth control while you are taking doxycycline to keep from getting pregnant. Doxycycline passes into breast milk and may affect bone and tooth development in a nursing baby. Do not take this medication without telling your doctor if you are breast-feeding a baby. Do not use this medication if you are allergic to doxycycline, or to similar medicines such as demeclocycline (Declomycin), minocycline (Dynacin, Minocin, Solodyn, Vectrin), or tetracycline (Brodspec, Panmycin, Sumycin, Tetracap). Before taking doxycycline, tell your doctor if you have liver or kidney disease. You may not be able to take doxycycline, or you may need a dose adjustment or special tests during treatment. Do not give doxycycline to a child younger than 8 years old. Doxycycline can cause permanent yellowing or graying of the teeth, and it can affect a child's growth. Throw away any unused doxycycline when it expires or when it is no longer needed. Do not take any doxycycline after the expiration date printed on the bottle. Expired doxycycline can cause a dangerous syndrome resulting in damage to the kidneys.
Possible Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Stop using doxycycline and call your doctor at once if you have any of these serious side effects:
- severe headache, dizziness, blurred vision
- fever, chills, body aches, flu symptoms
- severe blistering, peeling, and red skin rash
- urinating less than usual or not at all
- pale or yellowed skin, dark colored urine, fever, confusion or weakness
- severe pain in your upper stomach spreading to your back, nausea and vomiting, fast heart rate
- loss of appetite, jaundice (yellowing of the skin or eyes)
- easy bruising or bleeding, unusual weakness.
Less serious side effects may include:
- swollen tongue, trouble swallowing
- mild nausea, vomiting, diarrhea, or stomach upset
- white patches or sores inside your mouth or on your lips
- sores or swelling in your rectal or genital area
- vaginal itching or discharge.
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect.
More Information
Keep all appointments with your doctor and laboratory. Your doctor will want to check your response to doxycycline. If you have diabetes, doxycycline can cause false results in some tests for sugar in the urine. Check with your doctor before changing your diet or the dosage of your diabetes medicine. Do not let anyone else take your medication. Your prescription is probably not refillable. If you still have symptoms of infection after you finish the doxycycline, call your doctor.
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