Equivalent to 125 mg ceftiofur per 10 ml syringe.
Indicated for use in lactating dairy cattle for the treatment of clinical mastitis associated with coagulase-negative staphylococci, Streptococcus dysgalactiae and E. coli, as well as the treatment of diagnosed subclinical mastitis associated with coagulase-negative staphylococci and Streptococcus dysgalactiae.
SPECTRAMAST® LC has flexible label mastitis therapy to help tailor treatment duration to the individual case of mastitis when extra days of therapy are needed. Provides the flexibility to continue once-daily treatment for up to 8 consecutive days for more stubborn mastitis cases.
Benefits of SPECTRAMAST® LC include:
- A two-day pre-slaughter meat withdrawal – the shortest withhold time available for greater management flexibility
- A 70.4% bacteriological cure rate achieved with just 2 syringes of SPECTRAMAST® LC, according to research*
* Data on file, Study Report No. a0091969, Zoetis Inc.
A Cornell University study evaluated the efficacy of SPECTRAMAST® LC for treating mild and moderate cases of gram-negative mastitis.**
- Cows with complete cures gave 8.8 pounds more milk compared with cows not cured (p < 0.05)**
- Bacteriological cure rate for quarters infected with E. coli was 89% in cows treated with SPECTRAMAST® LC versus 53% in cows receiving no treatment**
** Schukken YH, Bennett GJ, Zurakowski MJ, et al. Randomized clinical trial to evaluate the efficacy of a 5-day ceftiofur
Residue Free Guarantee Program: If you use a Zoetis-branded ceftiofur product according to label indications, and experience a violative ceftiofur milk or meat residue, Zoetis will compensate you for the beef market value of the animal or purchase the tanker of milk at fair market value. To qualify, you must purchase the product from a Zoetis-approved supplier, use the product according to label directions, have documentation of the product purchase and treatment records. Extra-label use as prescribed by a veterinarian is excluded from the guarantee.
Learn More About Detecting and Treating MastitisSpectramast LC Suspension Rx
Provides flexible treatment from 2 to 8 days for the best chance that mastitis is bacteriologically cured
Equivalent to 125 mg ceftiofur per 10 ml syringe. Indicated for use in lactating dairy cattle for the treatment of clinical mastitis associated with… Read More Read More
Features & Benefits
- For use in lactating dairy cattle only
- Convenient once-a-day dosing
- 72-hour milk discard
Equivalent to 125 mg ceftiofur per 10 ml syringe.
Indicated for use in lactating dairy cattle for the treatment of clinical mastitis associated with coagulase-negative staphylococci, Streptococcus dysgalactiae and E. coli, as well as the treatment of diagnosed subclinical mastitis associated with coagulase-negative staphylococci and Streptococcus dysgalactiae.
SPECTRAMAST® LC has flexible label mastitis therapy to help tailor treatment duration to the individual case of mastitis when extra days of therapy are needed. Provides the flexibility to continue once-daily treatment for up to 8 consecutive days for more stubborn mastitis cases.
Benefits of SPECTRAMAST® LC include:
- A two-day pre-slaughter meat withdrawal – the shortest withhold time available for greater management flexibility
- A 70.4% bacteriological cure rate achieved with just 2 syringes of SPECTRAMAST® LC, according to research*
* Data on file, Study Report No. a0091969, Zoetis Inc.
A Cornell University study evaluated the efficacy of SPECTRAMAST® LC for treating mild and moderate cases of gram-negative mastitis.**
- Cows with complete cures gave 8.8 pounds more milk compared with cows not cured (p < 0.05)**
- Bacteriological cure rate for quarters infected with E. coli was 89% in cows treated with SPECTRAMAST® LC versus 53% in cows receiving no treatment**
** Schukken YH, Bennett GJ, Zurakowski MJ, et al. Randomized clinical trial to evaluate the efficacy of a 5-day ceftiofur
Residue Free Guarantee Program: If you use a Zoetis-branded ceftiofur product according to label indications, and experience a violative ceftiofur milk or meat residue, Zoetis will compensate you for the beef market value of the animal or purchase the tanker of milk at fair market value. To qualify, you must purchase the product from a Zoetis-approved supplier, use the product according to label directions, have documentation of the product purchase and treatment records. Extra-label use as prescribed by a veterinarian is excluded from the guarantee.
Learn More About Detecting and Treating Mastitis
How to Order Prescriptions from PBS Animal Health
Read more about the Smart, Simple and Safe Animal Pharmacy You Need
Our Pharmacy Service is available in these states:

- Connecticut
- Florida
- Iowa
- Illinois
- Indiana
- Kentucky
- Michigan
- Minnesota
- New Hampshire
- New York
- Ohio
- Pennsylvania
- Tennessee
- Vermont
- Wisconsin
- West Virginia
1. Place your order online and our pharmacist will contact your veterinarian.
During the checkout process, we will collect your veterinarian and animal information. Our pharmacist will contact your veterinarian to obtain a prescription. We will ship your non-prescription items immediately. Prescription orders will be held up to 3 business days awaiting approval from your vet.
2. Ask your Veterinarian to submit your prescription by one of the following methods.
- Call our Pharmacy at +1 (800) 835-7451 or
- Fax the prescription to our Pharmacy at 330-830-2764
- Please call us at 800-321-0235 to place your order once you've confirmed your vet has submitted your prescription.
Pharmacy Hours
Monday-Friday 9am-5pm
Saturday 9am-Noon
Your Prescription Order is very important and you can be assured that as soon as we have your prescription(s) on file, along with your order, we will ship your order promptly!
Your satisfaction is TOP PRIORITY!
State Law prohibits the return of items purchased with a prescription.
OHIO STATE BOARD OF PHARMACY:
WHOLESALE DISTRIBUTOR LICENSE
#01-0012050
TERMINAL DISTRIBUTOR LICENSE
#02-1298300
Pharmacy is licensed as Matthews Veterinary Pharmacy.

Questions? Please contact us at email@pbsanimalhealth.com or call us at +1 (800) 321-0235. We are here to help and want you to get what you need, when you need it!
Effective as of 1/30/23
Customer Care Center Hours:
Monday - Friday 7am-6pm ET
Holidays excluded
Fax 24/7: 330-830-2762