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Doxycycline

What is doxycycline

Doxycycline is a tetracycline antibiotic. It fights bacteria in your 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 purposes other than those listed in this medication guide.

General medical information about doxycycline

Take all of the doxycycline that has been prescribed for you even if you begin to feel better. Your symptoms may improve before the infection is completely treated.

Children younger than 8 years of age should not take doxycycline. It can cause permanent tooth discoloration, and it can affect growth.

Avoid antacids and vitamin supplements that contain calcium, iron, magnesium, or sodium bicarbonate. These minerals may decrease the effectiveness of doxycycline.

Doxycycline may decrease the effectiveness of birth control pills. Use a second method of birth control to ensure protection from unintended pregnancy while taking doxycycline.

Avoid prolonged exposure to sunlight or artificial UV light (e.g., tanning beds). Doxycycline may increase the sensitivity of the skin to sunlight and sunburn may result. Use a sunscreen and wear protective clothing when exposure to the sun is unavoidable.

What you should find out before taking doxycycline

Before taking doxycycline, tell your doctor if you have kidney or liver disease. You may not be able to take doxycycline, or you may require a dosage adjustment or special monitoring during therapy.

Doxycycline is in the FDA pregnancy category D. This means that it is known to be harmful to an unborn baby. Doxycycline may affect bone and tooth development of the developing baby. Do not take this medication without first talking to your doctor if you are pregnant or could become pregnant during treatment.

Doxycycline passes into breast milk and may affect bone and tooth development in a nursing infant. Do not take this medication without first talking to your doctor if you are breast-feeding a baby.

Children younger than 8 years of age should not take doxycycline. It can cause permanent tooth discoloration, and it can affect growth.

How should take doxycycline

Take doxycycline exactly as directed by your doctor. If you do not understand these instructions, ask your pharmacist, nurse, or doctor to explain them to you.

Take each dose with a full glass of water (8 ounces).

Doxycycline may be taken with food or milk or on an empty stomach.

Do not take iron supplements, multivitamins, calcium supplements, antacids, or laxatives within 2 hours of taking doxycycline. These products may reduce the effectiveness of doxycycline.

Take all of the doxycycline that has been prescribed for you even if you begin to feel better. Your symptoms may start to improve before the infection is completely treated.

It is important to take doxycycline regularly to get the most benefit.

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.

Store this medication at room temperature away from moisture and heat.

If you miss a dose:

Take the missed dose as soon as you remember. However, if it is almost time for the next dose, skip the missed dose and take only the next regularly scheduled dose. Do not take a double dose of this medication unless otherwise directed by your doctor.

What happens if you overdose:

Seek emergency medical attention if an overdose is suspected.

Symptoms of a doxycycline overdose include nausea, vomiting, and diarrhea.

Avoid while taking doxycycline

Avoid prolonged exposure to sunlight or artificial UV light (e.g., tanning beds). Doxycycline may increase the sensitivity of the skin to sunlight and sunburn may result. Use a sunscreen and wear protective clothing when exposure to the sun is unavoidable.

Do not take iron supplements, multivitamins, calcium supplements, antacids, or laxatives within 2 hours of taking doxycycline. These products may reduce the effectiveness of doxycycline.

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 of doxycycline

If you experience any of the following serious side effects, stop taking doxycycline and seek emergency medical attention or contact your doctor immediately:
- an allergic reaction (swelling of the lips, face, or tongue, difficulty breathing);
- severe headache;
- vision changes;
- confusion;
- liver damage (yellowing of the skin or eyes, nausea, abdominal pain or discomfort, unusual bleeding or bruising, severe fatigue);
- blood problems (fever, fatigue, easy bruising or bleeding); or
- genital sores or itching.

If you experience any of the following less serious side effects, continue to take doxycycline and talk to your doctor:
- nausea, vomiting, or diarrhea;
- sensitivity to the sun;
- dark colored tongue or swollen tongue; or
- vaginal or oral yeast infection.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

What other drugs will affect doxycycline

Before taking doxycycline, tell your doctor if you are taking any of the following drugs:
- cholestyramine (Questran) or colestipol (Colestid);
- an antacid such as Tums, Rolaids, Milk of Magnesia, Maalox, and others;
- a product that contains bismuth subsalicylate such as Pepto-Bismol;
- minerals such as iron, zinc, calcium, magnesium, and over-the-counter vitamin and mineral supplements;
- didanosine (Videx);
- a blood thinner such as warfarin (Coumadin);
- sucralfate (Carafate); or
- a penicillin antibiotic such as amoxicillin (Amoxil, Trimox, others), penicillin (BeePen-VK, Pen-Vee K, Veetids, others), dicloxacillin (Dynapen), carbenicillin (Geocillin), oxacillin (Bactocill), and others.

You may not be able to take doxycycline or you may require a dosage adjustment or special monitoring during treatment.

Doxycycline may decrease the effectiveness of birth control pills. Use a second method of birth control to ensure protection from unintended pregnancy while taking doxycycline.

Drugs other than those listed here may also interact with doxycycline. Talk to your doctor and pharmacist before taking any prescription or over-the-counter medicines, including vitamins, minerals, and herbal products.

All prescription drugs:

A
abilify accupril accutane acetaminophen aciphex actifed actonel actos acyclovir adalat adderall adipex advair advil albuterol alesse aleve allegra allopurinol amaryl ambien amiodarone amitriptyline amoxicillin amoxil amphetamine anacin aprazolam aricept asacol aspirin atenolol ativan atorvastatin atrovent augmentin avandia avapro avastin avelox azmacort
B
baclofen
bactrim bactroban baycol benadryl bextra biaxin boniva bontril buspar buspirone
C
caduet campral camptosar capoten captopril cardizem cardura carisoprodol casodex catapress cefzil celebrex celexa cellcept cephalexin cialis cipro ciprodex clarinex claritin climara clindamycin clonazepam clonidine codeine codeprex combivent combivir concerta copaxone coreg coricidin cotrim coumadin cozaar crestor cubicin cyclobenzaprine cymbalta
D
darvocet demerol depakote desogen detrol dextromethorphan diazepam diclofenac didrex diflucan digoxin dilantin diltiazem dimetapp diovan diprivan ditropan doxazosin doxycycline drixoral duragesic dyazide
E
effexor elavil elocon eloxatin emend enalapril enbrel endocet engerix-b entex epogen epzicom erbitux ertaczo ery-tab erythromycin estradiol evista 
F
fabrazyme famotidine fazaclo fenofibrate fioricet fiorinal flexeril flomax flonase flovent fluoxetine fosamax fosrenol furosemide  
G
gabapentin gamimune gemfibrozil gemzar glipizide glucophage glucotrol glucovance glyburide glyburide guaifenesin guaifenex 
H
herceptin humalog humira hydroxyzine hyzaar  
I
ibuprofen imdur imitrex imodium inderal insulin integrilin iressa 
K
kaletra keflex kenalog keppra ketek klonopin kytril  
L
lamictal lamisil lanoxin lantus lasix lescol levaquin levitra levothyroxine levoxyl lexapro lidoderm lipitor lisinopril lithium lorazepam lortab lotensin lotrel lotrisone lovenox lupron luveris  
M
macrobid magnevist meclizine medroxyprogesterone meridia metformin methadone methamphetamine methotrexate methylphenidate methylprednisolone metoclopramide metoprolol metronidazole miacalcin minocycline mobic monopril morphine motrin myfortic  
N
naproxen nasacort nasonex natrecor neulasta neupogen neurontin nexium nifedipine nitrofurantoin norco nortriptyline norvasc  
O
omeprazole omnicef orthovisc oxybutynin oxycodone oxycontin oxytrol  
P
paraplatin patanol paxil pegasys penicillin pepcid percocet percodan percogesic phendimetrazine phenergan phentermine phenytoin plavix plendil potassium pravachol prednisone premarin prempro prevacid prilosec prinivil procrit promethazine propecia propofol propoxyphene propranolol protonix proventil provigil prozac pseudoephedrine pulmicort  
R
ranitidine rebetol reglan relafen relpax remeron remicade renagel renova rhinocort riomet risperdal risperidone ritalin rituxan rocephin rogaine roxicet  
S
sanctura seasonale sensipar serevent seroquel serzone singulair skelaxin soma somavert sonata spiriva spironolactone strattera striant sustiva synagis synthroid 
T
tamoxifen tavist taxol taxotere tegretol temazepam tenormin tenuate tequin terazosin tetracycline tiazac tindamax titralac tobradex topamax toprol tramadol trazodone triamcinolone triaminic triamterene tricor trileptal trimox triphasil trizivir truvada tylenol 
U
ultane ultracet ultram uroxatral
V
valium valtrex vaniqa vasotec velcade verapamil viagra vicodin vicoprofen vidaza viracept viread vytorin  
W
warfarin wellbutrin  
X
xalatan xanax xenical xifaxan xolair xopenex xyrem  
Y
yasmin 
Z
zanaflex zantac zavesca zelnorm zemplar zerit zestoretic zestril zetia ziac zithromax zocor zofran zoladex zoloft zometa zorbtive zosyn zovirax zyrtec zyvox