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Tetracycline

Tetracycline Dosage

Kristianne Hannemann, PharmDCydnee Ng, PharmD
Reviewed by Kristianne Hannemann, PharmD, Cydnee Ng, PharmD
Last reviewed on October 15, 2026

The average cost for 56 capsules of 500mg of Tetracycline is $50.74 with a free GoodRx coupon. This is 94.25% off the average retail price of $881.99.

capsuleCapsule

Dosage

Quantity

Price as low as

Price per unit

250mg

56 capsules

$27.68

$0.49

500mg

56 capsules

$50.74

$0.91

tabletTablet

Dosage

Quantity

Price as low as

Price per unit

250mg

14 tablets

$566.25

$40.45

500mg

56 tablets

$2,246.25

$40.11

Typical dosage for Tetracycline

General dosages for most infections

  • Adults: The typical dose is 500 mg by mouth twice a day, or 250 mg four times a day. Your prescriber might give you a higher dose if your infection is severe or doesn't get better with a lower dose.

  • Children over 8 years of age: The prescriber will choose the dose based on your child's body weight. The typical daily dose is 25 mg/kg to 50 mg/kg of weight by mouth. The daily dose is split up into four equal doses taken throughout the day.

  • The prescriber will tell you how long to take tetracycline for. This depends on what type of infection you have and how serious it is.

Recommended dosages for specific infections

  • Brucellosis: The typical dose is 500 mg by mouth four times a day for 3 weeks. It's taken with another antibiotic called streptomycin.

  • Syphilis: The typical dose is 500 mg by mouth four times a day for 15 days. If you've had the infection for more than a year, treatment can last 30 days.

  • Gonorrhea or chlamydia: The typical dose is 500 mg by mouth four times a day for at least 7 days.

  • Severe acne: The typical starting dose is 1 gram by mouth each day, split into smaller doses throughout the day. Once your acne starts to get better, your prescriber might lower your dose to 125 mg to 500 mg per day.

Your dose might differ if you have kidney problems.

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