Chlortetracycline Hydrochloride
Chlortetracycline Hydrochloride is a broad-spectrum tetracycline antibiotic that inhibits bacterial protein synthesis. It has activity against a wide range of gram-positive and gram-negative bacteria, as well as some other organisms.
A broad-spectrum tetracycline antibiotic historically used in humans but now primarily employed in veterinary medicine and agriculture.
Key facts at a glance
- RxNorm
- 42545
- Generic
- Chlortetracycline Hydrochloride
- Class
- pin-variant
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Historically used for respiratory infections, urinary tract infections, and skin infections in humans. Currently more commonly used in veterinary medicine for treating infections in livestock, poultry, and pets. Also used in aquaculture and as a feed additive in animal husbandry.
Binds to the 30S ribosomal subunit of bacteria, blocking the attachment of aminoacyl-tRNA to the ribosome and thereby inhibiting bacterial protein synthesis.
Like other tetracyclines, it can cause photosensitivity, gastrointestinal disturbances, and tooth discoloration in children. Should not be used in pregnant women or children under 8 years old. Resistance development has limited its clinical use in human medicine.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy