Treats infections. This medicine is a tetracycline antibiotic.
Novaplus Doxy 100, Doxy 100There may be other brand names for this medicine.
When This Medicine Should Not Be Used:You should not use doxycycline if you have ever had an allergic reaction to any tetracycline antibiotic (such as minocycline, tetracycline). Do not give this medicine to children under 8 years old because it can permanently change tooth color. You should not use this medicine if you are pregnant or breastfeeding.
How to Use This Medicine:
- Your doctor will prescribe your exact dose and tell you how often it should be given. This medicine is given through a needle placed in one of your veins.
- A nurse or other trained health professional will give you this medicine. It may also be given by a home health caregiver.
- You may be taught how to give your medicine at home. Make sure you understand all instructions before giving yourself an injection. Do not use more medicine or use it more often than your doctor tells you to.
- Use a new needle and syringe each time you inject your medicine.
- Keep using this medicine for the full treatment time, even if you feel better after the first few doses. Your infection may not clear up if you stop using the medicine too soon.
- Never share your medicine with anyone.
If a dose is missed:
- If you miss a dose or forget to use your medicine, call your doctor, pharmacist, or home health caregiver.
- Do not use extra medicine to make up for a missed dose.
How to Store and Dispose of This Medicine:
- If you store this medicine at home, keep it at room temperature, away from heat and direct light. If the powder medicine has been mixed with a liquid, it should be stored in the refrigerator and used within 3 days after mixing.
- Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.
- Throw away used needles in a hard, closed container that the needles cannot poke through. Keep this container away from children and pets.
- Keep all medicine out of the reach of children.
Drugs and Foods to Avoid:
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
- Make sure your doctor knows if you are also using penicillin, or a blood thinner (Coumadin®).
Warnings While Using This Medicine:
- Make sure your doctor knows if you have liver disease or lupus.
- This medicine may make your skin more sensitive to sunlight. Use a sunscreen when you are outdoors. Avoid sunlamps and tanning beds.
Possible Side Effects While Using This Medicine:
Call your doctor right away if you notice any of these side effects:
- Allergic reaction: Itching or hives, swelling in face or hands, swelling or tingling in the mouth or throat, tightness in chest, trouble breathing
- Trouble swallowing
- Unusual bleeding or bruising
If you notice these less serious side effects, talk with your doctor:
- Diarrhea, nausea, vomiting, loss of appetite
If you notice other side effects that you think are caused by this medicine, tell your doctor
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088Last Updated:
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