Doxycycline belongs to the class of medications known as tetracyclines. It is an antibiotic that is used to treat certain infections that are caused by bacteria. It is most commonly used to treat lung infections such as pneumonia and bronchitis, urinary tract infections such as cystitis, throat infections such as tonsillitis, skin infections, and sexually transmitted infections.
This medication may be available under multiple brand names and/or in several different forms. Any specific brand name of this medication may not be available in all of the forms or approved for all of the conditions discussed here. As well, some forms of this medication may not be used for all of the conditions discussed here.
Your doctor may have suggested this medication for conditions other than those listed in these drug information articles. If you have not discussed this with your doctor or are not sure why you are taking this medication, speak to your doctor. Do not stop taking this medication without consulting your doctor.
Do not give this medication to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take this medication if their doctor has not prescribed it.
Chaque comprimé pelliculé, orange pâle, rond et biconvexe, portant l'inscription « APO-DOXY 100 » sur une face, contient 100 mg de doxycycline. Ingrédients non médicinaux : cellulose microcristalline, croscarmellose sodique, stéarate de magnésium, dioxyde de silice colloïdale, hydroxypropylméthylcellulose, polyéthylèneglycol, dioxyde de titane, AD et C jaune nº 6, eau purifiée et cire de carnauba.
La dose et la durée du traitement avec la doxycycline varient selon l'affection traitée. La dose habituellement recommandée de doxycycline pour les adultes est de 200 mg pour la première dose suivie de 100 mg une fois par jour au même moment chaque jour, avec ou après un repas. Pour certains types d'infections, on peut prendre la doxycycline deux fois par jour.
Le médicament devrait se prendre avec beaucoup d'eau pendant que vous êtes en position debout ou assise pour réduire le risque de blessure à l'œsophage. Ne vous allongez pas avant au moins 1 ou 2 heures après avoir pris le médicament. Ce médicament ne devrait pas se prendre en même temps que des antiacides ou des préparations renfermant du fer étant donné que ces produits pourraient nuire à son efficacité.
Plusieurs facteurs peuvent entrer en ligne de compte pour déterminer la dose dont une personne a besoin : son poids, son état de santé et la prise d'autres médicaments. Si votre médecin a recommandé une dose autre que celles indiquées ici, ne modifiez pas la manière de prendre le médicament sans le consulter au préalable.
Il est très important que ce médicament soit pris conformément aux indications de votre médecin. Terminez ce médicament, même si vous commencez à vous sentir mieux. Si vous oubliez une dose, prenez le médicament dès que vous constatez l'omission et reprenez la suite du traitement aussitôt que possible. S'il est presque temps de votre prochaine dose, ne vous souciez pas de la dose omise et reprenez le schéma posologique usuel. N'utilisez pas une double dose pour compenser l'omission d'une dose. Si vous hésitez sur la conduite à tenir après avoir omis une dose, demandez conseil à votre médecin ou à un pharmacien.
Conservez ce médicament à la température ambiante, à l'abri de la lumière et de l'humidité et hors de la portée des enfants.
Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.
Do not take doxycycline if you:
Do not give this medication to children under 8 years of age.
Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent.
The side effects listed below are not experienced by everyone who takes this medication. If you are concerned about side effects, discuss the risks and benefits of this medication with your doctor.
The following side effects have been reported by people taking this medication. Many of these side effects can be managed, and some may go away on their own over time.
Contact your doctor if you experience these side effects and they are severe or bothersome. Your pharmacist may be able to advise you on managing side effects.
Although most of the side effects listed below don't happen very often, they could lead to serious problems if you do not check with your doctor or seek medical attention.
Check with your doctor as soon as possible if any of the following side effects occur:
Stop taking the medication and seek immediate medical attention if any of the following occur:
Some people may experience side effects other than those listed. Check with your doctor if you notice any symptom that worries you while you are taking this medication.
Before you begin using a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use this medication.
Birth control: Some antibiotics may decrease the effectiveness of birth control pills. Ask your doctor if you should be using more than one method of birth control while you are taking this medication.
High blood pressure in the brain: Doxycycline may increase the risk of high blood pressure in the brain. Contact your doctor right away if you experience blurred vision, double vision, and headache.
Esophagus problems: People taking doxycycline have experienced ulcers and injury to their esophagus. To help prevent this, take doxycycline with a full glass of water while standing or sitting upright. Do not lie down for at least 1 to 2 hours after taking the medication.
Liver disease: Rarely, doxycycline may affect liver function or cause liver damage. If you experience symptoms of liver problems such as fatigue, feeling unwell, loss of appetite, nausea, yellowing of the skin or whites of the eyes, dark urine, pale stools, abdominal pain or swelling, and itchy skin, contact your doctor immediately.
Other infections: The use of antibiotics may occasionally result in organisms not killed by the antibiotic to overgrow, resulting in conditions such as yeast infections which may cause vaginal itching and irritation. Talk to your doctor if you have any concerns.
Stomach problems: People taking this medication may develop diarrhea caused by an infection with the bacteria C. difficile. Get medical attention as soon as possible if you have loose, watery, and bloody bowel movements, with or without fever or stomach cramps, after taking doxycycline. Diarrhea caused by C. difficile infection can lead to serious health problems if it is not properly treated.
Sunburn: An exaggerated sunburn reaction may occur for some people taking tetracyclines, including doxycycline. Avoid exposure to excessive sunlight, including sunlamps and tanning beds, and use sunblock with minimum SPF 30. Stop taking doxycycline at the first sign of skin redness.
Pregnancy: Like other tetracycline antibiotics, doxycycline may cause harm to the developing baby if this medication is taken during pregnancy. This medication should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking this medication, contact your doctor immediately.
Breast-feeding: This medication passes into breast milk and causes discolouration of the teeth and reduced bone growth in a breast-feeding infant if it is taken while still breast-feeding. Due to the adverse effects on the developing infant, this medication should not be used by people who are breast-feeding.
Children: The use of doxycycline during tooth development (from the last trimester of pregnancy to the age of 8 years) may cause permanent discoloration of the teeth (yellow-grey-brown). Though more commonly associated with long-term use of tetracyclines, this effect has also been known to occur after taking the medication for a short time.
The safety and effectiveness of using this medication have not been established for children under 8 years of age.
For a full list of interactions, use the Drug Interaction Checker available on the Drugs.com website.
If you are taking other medications, speak with your doctor or pharmacist. Depending on your specific circumstances, your doctor may want you to:
An interaction between two medications does not always mean that you must stop taking one of them. Speak to your doctor about how any drug interactions are being managed or should be managed.
Tell your doctor or prescriber about all prescription, over-the-counter (non-prescription), and herbal medications you are taking. Also tell them about any supplements you take. Since caffeine, alcohol, the nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them.
All material copyright MediResource Inc. 1996 – 2025. Terms and conditions of use. The contents herein are for informational purposes only. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Source: www.medbroadcast.com/drug/getdrug/Doxytab