What Conditions Does Doxycycline Treat?

Doxycycline is a broad-spectrum antibiotic belonging to the tetracycline class. It is commonly prescribed to treat various bacterial infections and some parasitic infections. Below are the key conditions it is used for:

1. Bacterial Infections

✔ Respiratory Infections

Pneumonia
Bronchitis
Sinusitis
Whooping cough (pertussis)

✔ Skin Infections

Acne (moderate to severe)
Cellulitis
Abscesses
Rosacea

✔ Sexually Transmitted Infections (STIs)

Chlamydia
Gonorrhea (in combination with other antibiotics)
Syphilis (alternative treatment)

✔ Urinary Tract Infections (UTIs)

Prostatitis
Urethritis

2. Parasitic Infections

✔ Malaria (Prevention & Treatment)

Used as a prophylactic (preventive) treatment in malaria-endemic regions.

✔ Lyme Disease

Early-stage Lyme disease (caused by tick bites)

3. Other Uses

✔ Eye Infections

Conjunctivitis (in some cases)

✔ Anthrax Exposure

Used as a preventive measure after exposure to anthrax.

✔ Periodontal Disease

Helps treat gum infections when used alongside dental procedures.

How Does Doxycycline Work?

Doxycycline inhibits bacterial protein synthesis, stopping bacteria from growing and multiplying. It is effective against both gram-positive and gram-negative bacteria.

Important Considerations

✅ Take with food to avoid stomach upset (unless directed otherwise).
❌ Avoid dairy, iron, or antacids within 2 hours of taking it (they reduce absorption).
☀️ Limit sun exposure (increases sensitivity to sunlight).