Doxycycline vs. Tetracycline — What's the Difference?

A broad-spectrum antibiotic used to treat a wide range of infections.

Effective against Helicobacter pylori in peptic ulcer disease.

Effective against acne due to its anti-inflammatory properties.

Can cause yellowing of teeth if used in children under 8 years old.

Can be used as malaria prophylaxis.

Treats infections like chlamydia, gonorrhea, and syphilis.

Used in the treatment of transmitted infections.

A first-generation antibiotic for treating various bacterial infections.

Known for treating respiratory tract infections.

Used to treat infections where bacteria are resistant to other antibiotics.

Doxycycline is a broad-spectrum tetracycline-class antibiotic used in the treatment of infections caused by bacteria and certain parasites. It is used to treat bacterial pneumonia, acne, chlamydia infections, Lyme disease, cholera, typhus, and syphilis.

Tetracycline, sold under the brand name Sumycin among others, is an oral antibiotic in the tetracyclines family of medications, used to treat a number of infections, including acne, cholera, brucellosis, plague, malaria, and syphilis.Common side effects include vomiting, diarrhea, rash, and loss of appetite. Other side effects include poor tooth development if used by children less than eight years of age, kidney problems, and sunburning easily.

A broad-spectrum antibiotic, C22H24N2O8, derived from tetracycline.

A yellow crystalline compound, C22H24N2O8, synthesized or derived from certain microorganisms of the genus Streptomyces and used as a broad-spectrum antibiotic.

(pharmaceutical drug) A broad-spectrum antibiotic C₂₂H₂₄N₂O₈ of the tetracycline class, which has a long half-life in the body and used orally to treat various bacterial infections.

An antibiotic, such as chlortetracycline and oxytetracycline, having the same basic structure.

An antibiotic derived from tetracycline that is effective against many infections;

A yellow crystalline broad-spectrum antibiotic C₂₂H₂₄N₂O₈ produced by streptomyces or synthetically.

Any of a large group of antibiotics with the same general structure derived from tetracene with many hydroxyl and other groups.

An antibiotic (trade name Achromycin) derived from microorganisms of the genus Streptomyces and used broadly to treat infections

Tetracycline is a first-generation antibiotic effective against a range of bacterial infections, but with a narrower spectrum compared to Doxycycline.

Both are effective against a range of infections, but Doxycycline has a broader spectrum of activity.

Doxycycline is often preferred for respiratory tract infections due to its broader coverage and better tissue penetration.

Doxycycline typically requires once or twice daily dosing, while Tetracycline needs to be taken four times a day.

Doxycycline's absorption is less affected by food, while Tetracycline should not be taken with dairy products.

Yes, Doxycycline has a longer half-life, allowing for less frequent dosing.

Yes, Tetracycline is part of the combination therapy used to treat Helicobacter pylori infections.

Doxycycline is a second-generation tetracycline antibiotic used to treat a variety of bacterial infections.

Yes, Doxycycline is recommended as a malaria prophylactic for travelers to certain areas.

Doxycycline is usually not recommended for children under 8 years old due to the risk of tooth discoloration, a concern also shared with Tetracycline.

Doxycycline is associated with a higher risk of photosensitivity compared to Tetracycline.

Yes, both Doxycycline and Tetracycline can be used to treat acne, with Doxycycline also having anti-inflammatory properties.

It's advised to limit sun exposure and use sunscreen to protect your skin.

Resistance can be an issue for both, but Doxycycline tends to have a broader effective range against resistant strains compared to Tetracycline.

The need for frequent dosing and dietary restrictions due to its interaction with dairy products are significant drawbacks.