Cefquinome
Spectramast is a brand-name veterinary antibiotic used to treat mastitis (udder infection) in dairy cattle. The active ingredient is ceftiofur, a cephalosporin antibiotic that works by inhibiting bacterial cell wall synthesis. It is administered directly into the affected quarter(s) of the udder via intramammary infusion.
Spectramast is a veterinary antibiotic used to treat mastitis in dairy cattle.
Key facts at a glance
- RxNorm
- 1363763
- Generic
- Spectramast
- Class
- brand-name
- 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.
Treatment of mastitis in lactating dairy cattle caused by susceptible bacteria such as Staphylococcus aureus, Streptococcus agalactiae, and other common mastitis pathogens.
Contains ceftiofur, a third-generation cephalosporin antibiotic that inhibits bacterial cell wall synthesis, leading to bacterial death.
For veterinary use only in dairy cattle. Milk must be discarded for a specified withdrawal period after treatment. Use as directed by a veterinarian. Not for use in animals with known hypersensitivity to cephalosporins.
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 9, 2026. · Read our editorial policy