Shop All Antibiotics & Antimycotics

Penicillin-Streptomycin-Glutamine (100X) (Gibco™)

The antibiotics penicillin and streptomycin are used to prevent bacterial contamination in cell cultures due to their effective combined action against gram-positive and gram-negative bacteria. Penicillin was originally purified from the fungi Penicillium and acts by interfering directly with the turnover of the bacteria cell wall and indirectly by triggering the release of enzymes that further alter the cell wall. Streptomycin was originally purified from Streptomyces griseus . It acts by binding to the 30S subunit of the bacterial ribosome, leading to the inhibition of protein synthesis and death in susceptible bacteria. This solution contains 10,000 units of penicillin, 10,000 µg of streptomycin, and 29.2 mg/ml of L-glutamine in a 10 mM citrate buffer (for pH stability).

We offer a wide range of antibiotics and antimycotics in both powder and liquid formats. See the complete list, or find products for:
Contamination control
Eukaryotic and bacterial selection

See recommended working concentrations for selection antibiotics.

Learn more about the use of antibiotics and antimycotics in cell culture and review guidelines for decontaminating cultures.

Neomycin Sulfate (Gibco™)

Gibco® Neomycin is produced by Streptomyces fradiae. Polymyxin B Sulfate acts by binding to the 30S subunit of the bacterial ribosome leading to inhibition of protein synthesis and death in susceptible bacteria. Gibco® Neomycin Sulfate is used for the prevention of bacterial contamination of cell cultures. This antibiotic is highly active against gram-negative bacteria. The recommended working concentration is 50 µg/ml. We offer a variety of antibiotics and antimycotics for cell culture applications.

Product Use
For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

Gentamicin/Amphotericin Solution (Gibco™)

A sterile, concentrated (500×) antibiotic⁄antimycotic solution of gentamicin and amphotericin B (10 × 1 ml vials⁄pkg). One Gentamicin⁄Amphotericin Solution 10-Pak is enough to supplement ten 500 ml bottles of basal medium. Animal origin-free.

Kanamycin Sulfate (Gibco™)

Kanamycin Sulfate is a water-soluble antibiotic originally purified from the bacterium Streptomyces kanamyceticus. Kanamycin acts by binding to the 30S subunit of the bacterial ribosome and inhibiting protein synthesis in susceptible bacteria. Gibco® Kanamycin is effective against a wide variety of gram-negative and some gram-positive bacteria, and is used for the prevention of bacterial contamination of cell cultures. We offer a variety of antibiotics and antimycotics for cell culture applications.

Product Use
For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

Dual-Site cGMP Manufacturing
For supply chain continuity, we manufacture Gibco® Kanamycin at two separate facilities located in Grand Island, NY and Scotland, UK. Both sites are compliant with cGMP manufacturing requirements, are certified to ISO 13485, and are registered with the FDA as medical device manufacturers.

Geneticin™ Selective Antibiotic (G418 Sulfate) (50 mg/mL) (Gibco™)

Geneticin® Selective Antibiotic (G418 Sulfate) is produced by the bacterium Micromonospora rhodorangea and acts by binding the ribosome, thus inhibiting protein synthesis in both prokaryotic and eukaryotic cells. Resistance to Geneticin® Selective Antibiotic (G418 Sulfate) is conferred by the E. coli APH (3’) – I and APH (3’) – II resistance genes. Gibco® Geneticin® Selective Antibiotic (G418 Sulfate) is used as a selective antibiotic in the concentration range of 100 - 200 µg/ml for bacteria, or 200 – 500 µg/ml for most mammalian cells. This product is supplied as a 50 mg/ml solution in water. We offer a variety of cell culture antibiotics for your convenience.

Product Use
For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

Dual-Site cGMP Manufacturing and Quality Standard
For supply chain continuity, we manufacture Gibco® Geneticin® Selective Antibiotic (G418 Sulfate) at two separate facilities located in Grand Island, NY and Scotland, UK. Both sites are compliant with cGMP manufacturing requirements, are certified to ISO 13485, and are registered with the FDA as medical device manufacturers.

Penicillin-Streptomycin (10,000 U/mL) (Gibco™)

The antibiotics penicillin and streptomycin are used to prevent bacterial contamination of cell cultures due to their effective combined action against gram-positive and gram-negative bacteria. Penicillin was originally purified from the fungi Penicillium and acts by interfering directly with the turnover of the bacterial cell wall and indirectly by triggering the release of enzymes that further alter the cell wall. Streptomycin was originally purified from Streptomyces griseus. It acts by binding to the 30S subunit of the bacterial ribosome, leading to inhibition of protein synthesis and death in susceptible bacteria. This solution contains 10,000 units/mL of penicillin and 10,000 µg/mL of streptomycin in a 10 mM citrate buffer (for pH stability).

We offer a wide range of antibiotics and antimycotics in both powder and liquid formats. See the complete list, or find products for:
Contamination control
Eukaryotic and bacterial selection

See recommended working concentrations for selection antibiotics.

Learn more about the use of antibiotics and antimycotics in cell culture and review guidelines for decontaminating cultures.

Streptomycin Sulfate (Gibco™)

Streptomycin Sulfate is a water-soluble antibiotic originally purified from Streptomyces griseus. Streptomycin Sulfate acts by binding to the 30S subunit of the bacterial ribosome leading to inhibition of protein synthesis and death in susceptible bacteria. Streptomycin Sulfate is highly active against gram-negative with some activity against gram-positive bacteria. Gibco® Streptomycin Sulfate is used alone or in combination with penicillin, an antibiotic highly active against gram-positive bacteria, for the prevention of bacterial contamination of cell cultures. The recommended working concentration ranges from 50 to 100 µg/ml. We offer a variety of antibiotics and antimycotics for cell culture applications.

Product Use
For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

Dual-Site cGMP Manufacturing
For supply chain continuity, we manufacture Gibco® Streptomycin Sulfate at two separate facilities located in Grand Island, NY and Scotland, UK. Both sites are compliant with cGMP manufacturing requirements, are certified to ISO 13485, and are registered with the FDA as medical device manufacturers.

Polymyxin B Sulfate (Gibco™)

Polymyxin B Sulfate is produced by Bacillus polymyxa. Polymyxin B Sulfate works by binding to the cellular membrane and interfering with its permeability. Gibco® Polymyxin B Sulfate is used for the prevention of bacterial contamination of cell cultures. This antibiotic is highly active against gram-negative bacteria. The recommended working concentration is 100 units/ml. We offer a variety of antibiotics and antimycotics for cell culture applications.

Product Use
For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

Ampicillin, sodium salt, irradiated (Gibco™)

Ampicillin is an antibiotic in the broad-spectrum penicillin group. Ampicillin differs from penicillin only by the presence of an amino group, which facilitates penetration through the outer membrane of some gram-negative bacteria. Ampicillin acts by interfering directly with the turnover of the bacteria cell wall and indirectly by triggering the release of enzymes that further alter the cell wall. Gibco® Ampicillin is used as a selective antibiotic for resistant bacteria, generally at a concentration of 10-25 µg/ml for liquid media and 35-50 µg/ml for plates. This product is provided as a powder and should be made into a stock solution at 10 mg/ml in water. Ampicillin is not used to prevent bacterial contamination of cell cultures due to concerns of mammalian and insect cell toxicity. We offer a variety of cell culture antibiotics for your convenience.

Product Use
For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

cGMP Manufacturing
Gibco® Ampicillin is manufactured at a cGMP compliant facility, located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 standards.

Geneticin™ Selective Antibiotic (G418 Sulfate), Powder (Gibco™)

Geneticin® Selective Antibiotic (G418 Sulfate) is produced by the bacterium Micromonospora rhodorangea and acts by binding the ribosome, thus inhibiting protein synthesis in both prokaryotic and eukaryotic cells. Resistance to Geneticin® Selective Antibiotic (G418 Sulfate) is conferred by the E. coli APH (3’) – I and APH (3’) – II resistance genes. Gibco® Geneticin® Selective Antibiotic (G418 Sulfate) is used as a selective antibiotic in the concentration range of 100 - 200 µg/ml for bacteria, or 200 – 500 µg/ml for most mammalian cells. This product is supplied as a powder and should be made into a stock solution of 10 – 50 mg/ml in water. We offer a variety of cell culture antibiotics for your convenience.

Product Use
For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

Dual site cGMP Manufacturing and Quality System
For supply chain continuity, we manufacture Gibco® Geneticin® Selective Antibiotic (G418 Sulfate) at two separate facilities located in Grand Island, NY and Scotland, UK. Both sites are compliant with cGMP manufacturing requirements, are certified to ISO 13485, and are registered with the FDA as medical device manufacturers.

Gentamicin (10 mg/mL) (Gibco™)

Gentamicin sulfate is a water-soluble antibiotic drug originally purified from the fungus Micromonospora purpurea. Gentamicin acts by binding to the 30S subunit of the bacterial ribosome leading to inhibition protein synthesis and death in susceptible bacteria. Gibco® Gentamicin is effective against a wide variety of gram-positive and gram-negative bacteria, and is used for the prevention of bacterial contamination on cell cultures. The recommended working concentration ranges from 0.5 to 50 µg/ml. We offer a variety of antibiotics and antimycotics for cell culture applications.

Product Use
For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

Dual-Site cGMP Manufacturing
Gibco® Gentamicin is manufactured at a cGMP compliant facility, located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 standards. For supply chain continuity, we offer a comparable Gibco® Gentamicin product made in our Scotland facility (15710-049). This facility is registered with the FDA as a medical device manufacturer and is certified to the ISO 13485 standard.

Blasticidin S HCl, powder (Gibco™)

Blasticidin S is a nucleoside antibiotic isolated from Streptomyces griseochromogenes. It is a potent inhibitor of protein synthesis in both prokaryotic and eukaryotic cells. Blasticidin S acts quickly by inhibiting peptide bond formation by the ribosome. Blasticidin S is used for the prevention of contamination of cell cultures. The recommended working concentration ranges from 2 to 20 µg/ml depending on the cell line. We offer a variety of antibiotics and antimycotics for cell culture applications.

In addition, Blasticidin S is used as a bacterial selective antibiotic in the concentration range of 50–100 µg/ml. Resistance is conferred by expression of either one of two Blasticidin S deaminase genes: BSD (2) or bsr.These deaminases convert Blasticidin S to a nontoxic derivative. For selection purposes, the salt content of the LB medium must remain low (<90 mM) and the pH should not exceed 7.0 to maintain the activity of Basticidin S. We also offer a variety of selection antibiotics.

Product Use

For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

cGMP Manufacturing
Gibco® Blasticidin S HCl is manufactured at a cGMP compliant facility located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 standards.

Zeocin™ Selection Reagent (Gibco™)

Gibco® Zeocin™ Selection Antibiotic is a formulation of phleomycin D1, a glycopeptide antibiotic produced by Streptomyces verticillus. Zeocin™ Selection Antibiotic acts by binding to and cleaving DNA, leading to cell death.

Zeocin™ Selection Antibiotic is used for selection of of mammalian, insect, yeast, bacterial, and plant cell cultures. It is used at a working concentration ranging between 50–400 µg/mL depending on the cell type. This product is supplied at 100 mg/mL in sterile water in 8 x 1.25 mL vials.

Other Choices and More Information
We offer a wide range of antibiotics and antimycotics in both powder and liquid formats.

See the complete list, or find products for:
Contamination control
Eukaryotic and bacterial selection

See recommendations for working concentrations for selection antibiotics.

Learn more about the use of antibiotics and antimycotics in cell culture, and review guidelines for decontaminating cultures.

Zeocin is a trademark of Invivogen.

Actinomycin D (Gibco™)

Actinomycin D belongs to the class of polypeptide antibiotics and is isolated from bacteria of the genus Streptomyces. Actinomycin D acts by interfering with mRNA synthesis. Actinomycin D is used as a selective antibiotic for resistant bacteria, generally at a concentration of about 1 µg/ml. This product is provided as a powder and should be made into a stock solution at 1 mg/ml in DMSO. We also offer a variety of cell culture antibiotics.

Product Use
For Research Use Only: Not intended for animal or human diagnostic or therapeutic use.

cGMP Manufacturing
Gibco® Actimonmycin D is manufactured at a cGMP compliant facility located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 standards.

Antibiotic-Antimycotic (100X) (Gibco™)

Gibco® Antibiotic-Antimycotic is used to prevent bacterial and fungal contamination. This solution contains 10,000 units/mL of penicillin, 10,000 µg/mL of streptomycin, and 25 µg/mL of Gibco Amphotericin B. The antibiotics penicillin and streptomycin prevent bacterial contamination of cell cultures due to their effective combined action against gram-positive and gram-negative bacteria. Amphotericin B prevents fungal contamination of cell cultures due to its inhibition of multi-cellular fungus and yeast.

Penicillin was originally purified from the fungus Penicillium and acts by interfering directly with the turnover of the bacteria cell wall and indirectly by triggering the release of enzymes that further alter the cell wall. Streptomycin was originally purified from Streptomyces griseus. It acts by binding to the 30S subunit of the bacterial ribosome leading to inhibition of protein synthesis and death in susceptible bacteria. Amphotericin B is an antifungal agent that prevents the growth of fungi and yeast by causing an increase in fungal plasma membrane permeability.

We offer a wide range of antibiotics and antimycotics in both powder and liquid formats.

Learn more about the use of antibiotics and antimycotics in cell culture and review guidelines for decontaminating cultures.