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Medications and Drugs

Brand Names: Declomycin

Generic Name: demeclocycline (Pronunciation: DEM e kloe SYE kleen)

What is demeclocycline (Declomycin)?

Demeclocycline is a tetracycline antibiotic. It fights bacteria in the body.

Demeclocycline is used to treat many different bacterial infections, such as urinary tract infections, acne, gonorrhea, chlamydia, and others.

Demeclocycline may also be used for purposes not listed in this medication guide.

Declomycin 150 mg

round, red, imprinted with LL, D 11

Declomycin 300 mg

round, red, imprinted with LL, D 12

Demeclocycline 150 mg-AMN

round, red, imprinted with AN54

Demeclocycline 150 mg-BAR

round, pink, imprinted with 150, b 701

Demeclocycline 150 mg-GLO

round, red, imprinted with G, 2111

Demeclocycline 300 mg-AMN

round, red, imprinted with AN 55

Demeclocycline 300 mg-BAR

round, pink, imprinted with 300, b 702

Demeclocycline 300 mg-GLO

round, red, imprinted with G, 2122

What are the possible side effects of demeclocycline (Declomycin)?

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 demeclocycline and call your doctor at once if you have a serious side effect such as:

  • fever, chills, body aches, flu symptoms;
  • easy bruising, unusual bleeding (nose, mouth, vagina, or rectum), purple or red pinpoint spots under your skin;
  • pale skin, dark colored urine, jaundice (yellowing of the skin or eyes);
  • confusion, mood changes, weakness, increased thirst or urination;
  • swelling, weight gain, urinating less than usual or not at all;
  • chest pain, wheezing, dry cough, rapid breathing, feeling short of breath;
  • severe tingling, numbness, pain, muscle weakness;
  • headache, ringing in your ears, dizziness, nausea, vision problems, pain behind your eyes;
  • sore throat and headache with a severe blistering, peeling, and red skin rash; or
  • severe pain in your upper stomach spreading to your back, nausea and vomiting, fast heart rate.

Less serious side effects may include:

  • sores or swelling in your rectal or genital area;
  • mild nausea, vomiting, diarrhea, loss of appetite;
  • white patches or sores inside your mouth or on your lips;
  • swollen tongue, trouble swallowing; or
  • vaginal itching or discharge.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about demeclocycline (Declomycin)?

You should not take this medication if you are allergic to demeclocycline or to similar antibiotics such as doxycycline (Adoxa, Alodox, Avidoxy, Oraxyl, Doryx, Oracea, Vibramycin), minocycline (Dynacin, Minocin, Solodyn), or tetracycline (Ala-Tet, Brodspec, Panmycin, Sumycin, Tetracap).

Do not use demeclocycline if you are pregnant. It could harm the unborn baby or cause permanent tooth discoloration later in life.

Demeclocycline can make birth control pills less effective. Ask your doctor about using a non-hormone method of birth control (such as a condom, diaphragm, spermicide) to prevent pregnancy while taking demeclocycline.

Demeclocycline passes into breast milk and may affect bone and tooth development in a nursing baby. You should not breast-feed while you are taking demeclocycline.

Do not give demeclocycline to a child younger than 8 years old. Demeclocycline can affect a child's growth or cause permanent yellowing or graying of the teeth.

Avoid exposure to sunlight or tanning beds. Demeclocycline can make you sunburn more easily. Wear protective clothing and use sunscreen (SPF 30 or higher) when you are outdoors.

Do not take iron supplements, multivitamins, calcium supplements, antacids, or laxatives within 2 hours before or after taking demeclocycline. Also avoid a product that contains bismuth subsalicylate (such as Pepto-Bismol) within 2 hours before or after taking demeclocycline. These medications can make it harder for your body to absorb demeclocycline.

Throw away any unused demeclocycline after the expiration date on the label has passed.

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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