Amoxicillin is an aminopenicillin beta-lactam antibiotic that is used to treat many different types of infection caused by bacteria. It is usually the drug of choice within the class because it is better-absorbed, following oral administration, than other β-lactam antibiotics.

Grade: Micronized (IP / Ph. Eur); Compacted (IP / Ph. Eur); Powder (IP / Ph. Eur)

Ampicillin is a semi-synthetic derivative of penicillin that functions as an orally active broad-spectrum beta-lactam antibiotic. Ampicillin (like Amoxicillin) is part of the aminopenicillin family, which means it features a positively charged amino group that enhances uptake.

Grade: Extra Dry (IP / BP / USP), Compacted (IP / BP / USP), Powder (IP / BP / USP)

Oxacillin is a semisynthetic derivative of penicillin that functions as a narrow-spectrum beta-lactam antibiotic. Oxacillin is resistant to a variety of beta-lactamases, including penicillinases, and cephalosporinases and extended spectrum beta-lactamases.

Grade: IP / USP

Cloxacillin is a chlorinated derivative of Oxacillin, meaning it is also a semisynthetic derivative of penicillin used as a narrow-spectrum beta-lactam antibiotic. Cloxacillin is resistant to beta-lactamase (also known as penicillinase) enzymes secreted by many penicillin-resistant bacteria, and is thus used against staphylococci (like Oxacillin).

Grade: Compacted (IP / BP / USP), Powder (IP / BP / USP)

Dicloxacillin is a chlorinated derivative of Oxacillin, meaning it is also a semisynthetic derivative of penicillin used as a narrow-spectrum beta-lactam antibiotic. Dicloxacillin is resistant to beta-lactamase (also known as penicillinase) enzymes secreted by many penicillin-resistant bacteria, and is thus used against staphylococci (like Oxacillin).

Grade: Compacted (IP / BP / USP); Powder (IP / BP / USP)

Grade: Compacted (IP / BP), Powder (IP / BP)

Tazobactam is a heavily modified derivative of penicillin that inhibits the action of bacterial beta-lactamases. Tazobactam is often combined with the broad-spectrum beta-lactam antibiotic Piperacillin in the drug Piperacillin + Tazobactam. Tazobactam broadens the spectrum of Piperacillin by making it effective against organisms that express beta-lactamase and would normally degrade Piperacillin.

Grade: IP / USP

Piperacillin is a semisynthetic broad-spectrum beta-lactam antibiotic of the ureidopenicillin class. The chemical structure of Piperacillin and other ureidopenicillins enhances penetration into Gram negative bacteria and reduces susceptibility to cleavage by Gram negative beta-lactamase enzymes.

Piperacillin is most commonly used in combination with the beta-lactamase inhibitor Tazobactam, which enhances Piperacillin’s effectiveness by inhibiting beta-lactamases to which it is susceptible.

Grade: IH

Benzylpenicillin, also known as penicillin G, is a natural source, narrow-spectrum beta-lactam antibiotic. It is bactericidal by inhibiting bacterial cell wall biosynthesis.

Grade: IP / USP