The penicillins are among the earliest classes of antibacterial drugs. Penicillins are divided into subclasses based on chemical structure (eg, penicillins, monobactams, and carbapenems), spectrum (narrow, broad, or extended), source (natural, semisynthetic, or synthetic), and susceptibility to β-lactamase destruction. Manipulation of some drugs has improved the spectrum, resistance to β-lactamase destruction, or clinical pharmacologic characteristics that enhance efficacy.


Penicillin Injectable is a suspension of penicillin G procaine in 100, 250, and 500 mL multiple dose vials. Each mL is designed to provide 300,000 units of penicillin G as procaine in a stable suspension. Penicillin G procaine is an antibacterial agent which has activity against a variety of pathogenic organisms, mainly in the Gram-positive category.

Penicillin Injectable Indications

Penicillin Injectable is indicated for treatment of bacterial pneumonia (shipping fever) caused by Pasteurella multocida in cattle and sheep, erysipelas caused by Erysipelothrix rhusiopathiae in swine, and strangles caused by Streptococcus equi in horses.

Directions For Use

A thoroughly cleaned, sterile needle and syringe should be used for each injection (needles and syringes may be sterilized in boiling water for 15 minutes). Before withdrawing the solution from the bottle, disinfect the rubber cap top with 70% alcohol. The injection site should be similarly disinfected with alcohol. Needles of 16 to 18 gauge and 1 to 1.5 inches long are adequate for intramuscular injections.


Penicillin Injectable is administered by the intramuscular route. The product is ready for injection after warming the vial to room temperature and shaking to ensure a uniform suspension.

The daily dose of penicillin is 3,000 units per pound of body weight (1 mL per 100 lbs body weight). Continue daily treatment until recovery is apparent and for at least one day after symptoms disappear, usually in two to three days.

Treatment should not exceed four consecutive days.

No more than 10 mL should be injected at any one site. Rotate injection sites for each succeeding treatment.

Features of Penicillin For Cows

  • Combines long acting Penicillin G Procaine and Penicillin G Benzathine.
  • Broad spectrum of activity.
  • Easy syringe-ability because its non-foaming.
  • Single treatment maintains 48-hour penicillin levels.
  • Efficient and economical – reduces time, labor, and stress on animal associated with frequent injections.
  • Economical and effective!
  • 48 hour milk withholding
  • Slaughter withdrawal: Cattle – 14 days; Sheep – 9 days, Swine – 7 days

Specifications of Penicillin For Cows

  • Store between 2°C-8°C (36°F-46°F) and protect from freezing.
  • Warm to room temp and shake well prior to use.
  • Subcutaneous injection only.
  • Not for use in lactating dairy cattle.
  • Treatment should be limited to two doses given subcutaneously.

Prices of Penicillin For Cows

$20.49 – $110.99

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

And get notified everytime we publish a new blog post.
error: Content is protected !!