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Doxycycline Hyclate 100 mg Overview
Doxycycline Hyclate is a broad-spectrum antibiotic belonging to the tetracycline class of medications. It is commonly prescribed in the 100 mg dose to treat a wide range of bacterial infections.
Uses
Doxycycline Hyclate 100 mg is used to treat or prevent infections caused by bacteria, including:
- Respiratory tract infections (e.g. pneumonia, bronchitis)
- Urinary tract infections (UTIs)
- Skin infections (including acne and rosacea)
- Sexually transmitted infections (STIs) such as chlamydia and gonorrhea
- Eye infections
- Intestinal infections
- Tick-borne illnesses such as Lyme disease, Rocky Mountain spotted fever
- Malaria prevention (when traveling to high-risk areas)
How It Works
Doxycycline inhibits bacterial protein synthesis by binding to the 30S ribosomal subunit. This stops bacteria from growing and multiplying, allowing the immune system to eliminate the infection.
Dosage & Administration
- Typically taken as 100 mg once or twice daily, depending on the condition being treated.
- Should be taken with a full glass of water and preferably while upright (sitting or standing) to reduce the risk of esophageal irritation.
- May be taken with food to reduce stomach upset, although food may slightly reduce absorption.
Common Side Effects
- Nausea or vomiting
- Diarrhea
- Sun sensitivity (increased risk of sunburn)
- Esophageal irritation or ulcers (if not taken with enough water)
- Tooth discoloration (especially in children)
Warnings & Precautions
- Not recommended for children under 8 years or pregnant women, due to risk of permanent tooth discoloration and bone development issues.
- May interact with antacids, iron supplements, and certain dairy products, which can reduce absorption.
- Use sunscreen and limit sun exposure due to risk of photosensitivity.
- Always complete the full course of antibiotics, even if symptoms improve early.
Storage
- Store at room temperature, away from moisture and direct light.
- Do not use expired doxycycline, as it can become toxic over time.
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