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Tetracycline during pregnancy

Tetracyclines are a group of antibacterials and antibiotics that are used to treat many forms of infection.

Tetracyclines are effective at inhibiting the growth of bacteria including Chlamydia: the bacterial organism that is responsible for genito-urinary tract infections, eye infections and Chlamydia psittaci. Also treated with tetracyclines are Rickettsia; the bacterial organism that causes Q fever, and spirochaetes Borrelia burghdorferi the infection that causes Lyme disease.

Most tetracyclines are not properly absorbed by a stomach containing milk, calcium or magnesium salts (both of which are found in antacids), or iron supplementation, which is used to treat anemia.

How tetracycline works

Tetracyclines inhibit the manufacture of the proteins that bacteria and protozoa need to survive and replicate and thus kill the organisms themselves.

Tetracycline and pregnancy

Tetracycline should not be taken during pregnancy since it may be deposited within developing bone tissue and tooth enamel. Discoloration and potential deformity may result.

Tetracycline should not be used while breastfeeding since it passes to the breastmilk and may be harmful to a developing infant.

Children aged eight and under should only use tetracycline if other antibiotics are proven to be ineffective since permanent staining of the teeth may result.

Known food interactions

Limit or eliminate your intake of dairy foods while using tetracycline since they may reduce the effectiveness of the drug.

Alcohol should not be consumed while using this drug.

Disease interactions

Consult your doctor before taking this drug if you have a history of kidney or liver disease.

Drug interactions

Consult your doctor before taking propylthiouracil if you are taking any of the following drugs or medications:

  • antacids
  • cholestyramine
  • choline
  • laxatives that contain magnesium
  • magnesium salicylates
  • medications that contain iron
  • oral contraceptives
  • supplementary calcium
Reasons to consult your doctor

  • If you experience any of the following symptoms, discontinue the medication immediately and contact your doctor. These symptoms can be an indication of pseudotumor cerebri, a serious condition that may result in brain damage.
  • blurred vision
  • nausea and vomiting
  • severe headaches
  • If you have severe abdominal pain which penetrates through to the back you may be experiencing inflammation of the pancreas. Contact your doctor or visit and emergency room immediately.
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