Doxycycline 100mg is a widely used antibiotic in the tetracycline class. It’s valued for its broad activity, good oral absorption, and long half-life.buy-amoxicillin

Doxycycline – Overview

1. What it is

• Class: Tetracycline antibiotic

• Formulations: capsules, tablets, oral suspension, and intravenous injection

• Half-life: ~18–22 hours → allows once- or twice-daily dosing

2. Mechanism of action

• Inhibits bacterial protein synthesis by binding to the 30S ribosomal subunit.

• Blocks the addition of amino acids to the growing peptide chain.

• Bacteriostatic (stops bacterial growth rather than directly killing).cenforce-100

3. Indications

Doxycycline is used for a wide range of bacterial and other infections, including:

• Respiratory tract infections (bronchitis, pneumonia)

• Sexually transmitted infections (STIs): chlamydia, syphilis (in some cases), gonorrhoea (with other drugs)

• Skin infections & acne

• Tick-borne diseases: Lyme disease, Rocky Mountain spotted fever, ehrlichiosis

• Malaria prophylaxis and treatment (in combination)

• Anthrax (including inhalational anthrax, post-exposure)

• Periodontal infections

• Pelvic inflammatory disease

4. Dosage (general adult)

• Usual oral dose: 100 mg once or twice daily, depending on the infection.

• For malaria prevention: 100 mg once daily, starting 1–2 days before travel, continued during exposure, and for 4 weeks after leaving the area.
  (Exact dosing varies — always prescribed by a clinician.).tramadol-hydrochloride-100mg

5. Side effects

Common:

• Nausea, vomiting, diarrhoea

• Abdominal pain

• Photosensitivity (sunburn risk)

• Esophageal irritation (take with plenty of water, remain upright)

Less common but serious:

• Liver toxicity (rare)

• Intracranial hypertension (pseudotumor cerebri)

• Severe allergic reactions

• Long-term use: risk of gut flora imbalance, Candida overgrowth

6. Contraindications & precautions

• Not recommended in children under 8 years (can stain developing teeth and affect bone growth).

• Avoid in pregnancy (risk of effects on foetal bone/teeth).

• Interactions: antacids, iron, dairy products (calcium) can reduce absorption; interacts with warfarin and some seizure medicines.tapentadol-aspadol-100mg

7. Legal status

• Prescription-only medicine worldwide.

• Widely available and included in the WHO List of Essential Medicines.

✅ In short: Doxycycline is a versatile, long-acting antibiotic used against many infections, as well as for malaria prevention. It is generally safe, but can cause stomach upset and sun sensitivity, and is avoided in young children and pregnancy.tapentadol-100mg