Generic Name: Doxycycline

  • What is Monodox?

    Monodox is an antibiotic used to treat certain bacterial infections of the respiratory (lung) tract, urethra, rectum, or skin; Rocky Mountain spotted fever or other types of fever; or certain sexually transmitted diseases (such as chlamydia, gonorrhea, or syphilis). Monodox can be used to treat certain bacterial infections for people who are allergic to penicillin or cannot take penicillin antibiotics. It may also be used to treat other bacterial infections, as determined by your doctor.

  • What is the most important information I should know about Monodox?

    Monodox can cause permanent discoloration (yellow-gray-brown) of the teeth if it is taken during tooth development (during the last half of the pregnancy, infancy, and childhood to the age of 8 years). Monodox can also impair the bone growth of a baby.

    Monodox can cause diarrhea or colitis (inflammation of the colon). This can occur a couple of months after receiving the last dose of Monodox. Tell your doctor immediately if you have diarrhea or colitis.

    Monodox may make your skin more sensitive to light. If you notice skin eruptions developing, stop the medication and call your doctor immediately. You may consider using sunscreen or sunblock when taking Monodox.

    Drink plenty of fluids while you are taking Monodox to reduce the risk of irritation and ulceration of your esophagus.

    Monodox can increase your chance of getting a certain fungal infection of your vagina called vaginal candidiasis.

    Use Monodox as prescribed by your doctor for the full course of treatment, even if symptoms improve earlier. Do not skip doses. Skipping doses or not completing the full course of Monodox can decrease its effectiveness and can lead to growth of bacteria that are resistant to the effects of Monodox.

  • Who should not take Monodox?

    Do not take Monodox if you are allergic to it, any of its ingredients, or similar antibiotics (such as tetracycline).

    Do not take Monodox to treat viral infections, such as the common cold.

  • What should I tell my doctor before I take the first dose of Monodox?

    Tell your doctor about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Monodox. Also, talk to your doctor about your complete medical history, especially if you have allergies, have liver or kidney disease, are pregnant, plan to become pregnant, or are breastfeeding.

  • What is the usual dosage?

    The information below is based on the dosage guidelines your doctor uses. Depending on your condition and medical history, your doctor may prescribe a different regimen. Do not change the dosage or stop taking your medication without your doctor's approval.

    Your doctor might prescribe different doses than those listed below based on the type and severity of your infection.

    Adults: The recommended starting dose is 200 milligrams (mg), divided into smaller doses taken 2 or 4 times on the first day. This is followed by a maintenance dose of 100 mg a day.

    Children >8 years: Your doctor will prescribe the appropriate dose for your child, based on their weight and the severity of their infection.

  • How should I take Monodox?

    Take Monodox exactly as prescribed by your doctor. Take this medication with plenty of fluids to wash down the medication and to reduce the risk of irritation and ulceration of your esophagus. You can take Monodox with food if stomach irritation occurs.

  • What should I avoid while taking Monodox?

    Do not expose yourself to excessive sunlight or artificial ultraviolet light while you are taking Monodox.

  • What are possible food and drug interactions associated with Monodox?

    If Monodox is used with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Monodox with the following: antacids containing aluminum, calcium, or magnesium; birth control pills; bismuth subsalicylate; blood thinners (such as warfarin); iron-containing preparations; methoxyflurane; penicillin; or seizure medications (such as carbamazepine, phenobarbital, or phenytoin).

  • What are the possible side effects of Monodox?

    Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this drug.

    Side effects may include: allergic reactions, colitis, diarrhea, difficulty swallowing, flu symptoms, headache, joint pain, loss of appetite, nausea, rash, swelling of your tongue, vomiting

  • Can I receive Monodox if I am pregnant or breastfeeding?

    The effects of Monodox during pregnancy are unknown. Monodox can be found in your breast milk if you take it during breastfeeding. Do not take Monodox while breastfeeding. Tell your doctor immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

  • What should I do if I miss a dose of Monodox?

    If you miss a dose of Monodox, take it as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular dosing schedule. Do not take two doses at once.

  • How should I store Monodox?

    Store at room temperature. Protect from light.