Common conditions treated by doxycycline

## Introduction to Doxycycline Doxycycline is a versatile antibiotic belonging to the tetracycline class of medications. It works by inhibiting protein synthesis in bacteria, making it effective against both Gram-positive and Gram-negative bacteria. Its broad-spectrum activity makes it valuable for treating various bacterial infections. ## Common Bacterial Infections ### Respiratory Tract Infections - **Pneumonia**: Effective against atypical bacteria like *Mycoplasma pneumoniae* - **Bronchitis**: Used when bacterial infection is suspected - **Sinusitis**: Particularly useful for antibiotic-resistant cases ### Skin and Soft Tissue Infections - **Acne vulgaris**: Reduces inflammation and *P. acnes* populations - **Rosacea**: Helps reduce redness and inflammation - **Cellulitis**: Effective against *Staphylococcus* and *Streptococcus* species - **Folliculitis** - [MRSA infections](https://www.cdc.gov/mrsa/about/index.html) ### Sexually Transmitted Infections (STIs) - **Chlamydia**: First-line treatment - **Gonorrhea**: Used in combination therapy - **Syphilis**: Alternative for penicillin-allergic patients For comprehensive STI treatment guidelines, visit the [Centers for Disease Control and Prevention (CDC)](https://www.cdc.gov/sti/index.html). ## Vector-Borne Diseases ### Tick-Borne Illnesses - **Lyme Disease**: Critical for early-stage treatment - **Rocky Mountain Spotted Fever**: Reduces mortality when given promptly - **Ehrlichiosis and Anaplasmosis** Visit the [CDC's dedicated page](https://www.cdc.gov/ticks/index.html) for more information on tick-borne diseases. ## Other Medical Applications ### Ophthalmic Conditions > "Doxycycline's anti-inflammatory properties make it particularly useful in treating certain eye conditions." - Meibomian gland dysfunction - Ocular rosacea - Recurrent corneal erosion ### Periodontal Disease 1. Periodontitis 2. Gingivitis 3. Other gum infections ### Malaria Prevention Used as prophylaxis in regions with chloroquine-resistant *Plasmodium falciparum*. For travel health advice, consult the [World Health Organization (WHO)](https://www.who.int/news-room/fact-sheets/detail/malaria). ## Important Considerations ### Contraindications * Pregnancy (especially after 15 weeks) * Children under 8 years old * Severe liver disease ### Administration Guidelines For optimal absorption, avoid taking doxycycline with: ``` - Dairy products - Calcium supplements - Iron supplements - Antacids ``` ### Common Side Effects 1. Photosensitivity 2. Gastrointestinal upset 3. Esophageal irritation 4. Dental staining in developing teeth --- For most infections, the typical adult dose is 100 mg every 12 hours or 200 mg once daily. Always complete the full course of treatment to prevent antibiotic resistance. For more detailed information, refer to [MedlinePlus](https://medlineplus.gov/druginfo/meds/a682063.html).

Common conditions treated by doxycycline

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