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Doxycycline - Uses, Dosage, Side Effects, Drug Warnings, and Precautions

Published on Dec 14, 2021 and last reviewed on Jan 06, 2022   -  8 min read


Are you suffering from bacterial infections? Doxycycline is the drug of choice that can stop the growth of bacteria. Learn about its uses, dosage, drug warnings, side effects, precautions, drug interactions, and more.

Doxycycline - Uses, Dosage, Side Effects, Drug Warnings, and Precautions


The broad-spectrum antibiotic, Doxycycline is used to treat various types of bacterial infections. It comes under the drug class Tetracycline. It can be used in either form such as a tablet, capsule, powder for suspension, syrup, or injection and can be given only through prescription. Doxycycline is sometimes used to treat ear, nose, and throat infections, acne, and rosacea. Children under the age of 8 can take Doxycycline, but it may result in permanent discoloration of the tooth. Doxycycline should be used with caution in pregnancy and breastfeeding women due to the discoloration of teeth in growing fetuses and the breastfed baby.

What Is The Mechanism Of Action Of Doxycycline?

Doxycycline is a broad-spectrum antibiotic that comes under the drug class Tetracycline. It can act against gram-positive, gram-negative organisms, spirochetes, aerobic and anaerobic bacteria, and mycoplasma. It exerts its bacteriostatic action and stops bacteria's growth by inhibiting bacterial protein synthesis by attaching to the 30 S subunit of the bacterial ribosome of the susceptible organism. The 30 S subunit of the bacterial ribosome is not present in mammals.

What Are The Uses of Doxycycline?

Doxycycline can be used in:

What Are The Warnings And Precautions To Be Considered For Doxycycline?

What Should You Avoid While Taking Doxycycline?

What Are The Side Effects Of Doxycycline?

Side effects of Doxycycline may include:

Dangerous side effects of Doxycycline may include:

What Drugs Can Interact With Doxycycline?

Proper medical history of the patient should be taken by the doctor before administering Doxycycline.

What Are The Dosage And Usage Of Doxycycline In Infection?

Dosage And Usage Of Doxycycline

How Should I Take Doxycycline?

If you take Doxycycline as malaria prophylaxis:

  1. Start taking medicine 1 or 2 days prior to entering the malarious site.

  2. Continue to take the medication every day while you stay in that malarious area.

  3. Try to use the medicine for at least four weeks after leaving the area.

  4. Use protective long sleeve clothing, mosquito repellents, and netting around your bed to prevent mosquito bites.

For Malaria Prophylaxis:

Malaria Prophylaxis

What To Do In Case Of Doxycycline Overdose?

In the case of Doxycycline overdose seek immediate medical attention. Do this even if there are no signs of poisoning or discomfort.

Missed Dose:

You can take the missed dose once you remember it, but try to skip the missed dose if it is time for the next dose. Do not double the dose to compensate for the missed dose. If you do not know what to do, ask your doctor or the pharmacist.



Once the doctor advises you to stop the medicine after the recommended dosages or if it has crossed its expiry date, ask your pharmacist what to do with those drugs or throw away any unused medicine. Using Doxycycline after the expiry date can damage your kidneys.

What Are The Brand Names For Doxycycline?

What Are The Substitutes for Doxycycline 100 mg Tablets?


Last reviewed at:
06 Jan 2022  -  8 min read




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