Intravenous Antibiotics

Intravenous (IV) antibiotics are some of the more important treatment options regarding therapy. The list below is not complete, but represents the most common antibiotics we dispense. Please call if you do not see the medication you are looking for as we have access to many other antibiotics.

The dosing and schedules in the descriptions represent a range that is typical, but your practitioner may use an alternate schedule. General storage and administration information is given here as well, however your circumstance may require something different. When you place your order we will customize the directions for your particular needs.

Ampicillin (Omnipen,Polycillin,Principen)


Class of antibiotic > beta-lactam – inhibits transpeptidase which is a large part of bacterial wall synthesis.  Dose: 1-2grams IV every 4-6 hours.  This antibiotic is good against both gram positive and gram negative organisms but can be deactivated by beta-lactamase. This Antibiotic has a very short half-life once mixed. The Vial mate or Add-Ease … Continue Reading →




Ampicillin-sulbactam (Unasyn)


Class of antibiotic > beta-lactam – inhibits transpeptidase which is a large part of bacterial wall synthesis.  This antibiotic contains sulbactam which is a potent inhibitor of beta-lactamase (an enzyme that can deactivate ampicillin.) This grants the antibiotic more activity versus resistant bacteria. Dose: 1.5-3gm IV every six to eight hours. Administration: This medication has … Continue Reading →




Azithromycin (Zithromax)


Class of antibiotic > macrolide – inhibits protein synthesis by binding to the 50s subunit of mRNA in bacterial cells. Dose: 500mg IV once per day, diluted in 250ml of Normal Saline. Administration:  With a medium-short half-life when mixed, the options for this drug include the Vial Mate/Add-Ease system, administered via gravity, but if the … Continue Reading →




Aztreonam (Azactam)


Class of antibiotic > beta-lactam (monobactam) – inhibits the mucopeptide synthesis in bacterial cell walls.  Good activity against susceptible gram-negative bacteria. This antibiotic is sometimes used in patients that are allergic to aminoglycosides (gentamycin, amikacin, tobramycin, etc.) Dose: 1-2gm IV three times per day. Administration:  This medication has a very short half-life once mixed, so … Continue Reading →




Benzathine Penicillin (Bicillin LA)


Class of antibiotic> penicillin – binds to specific penicillin-binding proteins (PBPs) located inside bacterial cell walls, penicillin inhibits the third and last stage of bacterial cell wall synthesis, resulting in bacterial cell death. Dose: 1.2 to 2.4 million units Administration: Intramuscularly 2-3 times per week.  Comes in pre-filled syringes with needles.




Cefotaxime (Claforan)


Class of Antibiotic > cephalosporin – inhibits the mucopeptide synthesis in bacterial cell walls. Dose: 1-3 grams IV every 8 hours.  Diluted in 50-100ml of Normal Saline but typically is put in 20ml Syringes because it can be given IV push over 5-10 minutes. Administration: May be administered via Gravity Bag, Elastomeric Pump (“homeballs”) or … Continue Reading →




Ceftraroline Fosamil (Teflaro)


Class of antibiotic> 5th Generation Cephalosporin- inhibits the mucopeptide synthesis in bacterial cell walls. Dose: 600mg IV once to twice per day Administration:   This Antibiotic has a very short half-life once mixed, so we attach the vial of medication via a Vial mate or Add-Ease device. The Vial mate or Add-Ease System allows the Vial … Continue Reading →




Ceftriaxone (Rocephin)


Class of Antibiotic > cephalosporin –inhibits the mucopeptide synthesis in bacterial cell walls, Ceftriaxone is a cephalosporin/cephamycin beta-lactam antibiotic used in the treatment of bacterial infections caused by susceptible, usually gram-positive, organisms. Ceftriaxone has in vitro activity against gram-positive and gram-negative aerobic and anaerobic bacteria. The bactericidal activity of Ceftriaxone results from the inhibition of … Continue Reading →




Ciprofloxacin (Cipro)


Class of antibiotic > fluoroquinolone –  inhibits protein synthesis by interfering with topoisomerase. Dose:  400mg IV twice per day.  Typically comes in pre-mix bags of 200ml. Administration: Gravity drip.




Clindamycin (Cleocin)


Class of antibiotic > lincosamide – Inhibits protein synthesis (ribosomal translocation) by binding to the 50s subunit of mRNA in bacterial cells. Dose: 600-900mg IV every eight to 12 hours, diluted in 50-100ml of Normal Saline. Administration: Methods of administration include elastomeric pumps (“ homeballs”)  and gravity bags.




Doxycycline (Vibramycin, Doxychel)


Class of antibiotic > Tetracycline – inhibits protein synthesis by binding to the 30s subunit of mRNA in bacterial cells. Useful against susceptible gram-negative, gram-positive, protozoal, and rickettsial organisms. Dose: 100-400mg IV once per day, diluted in 100-400ml of Normal Saline. Administration: Methods of administration include elastomeric pumps (“homeballs) and gravity bags, although with a … Continue Reading →




Ertapenem (Invanz)


Class of antibiotic> carbapenem β-Lactam antibiotic – Dosage: 1gm IV once per day. Administration:  This medication has a very short half-life once mixed, so we attach the vial of medication via a Vial mate or Add-Ease device. This allows the Vial of medication to be connected to the bag of diluent.  Once activated the contents … Continue Reading →




Imipenem-cistlastin (Primaxin)


Class of antibiotic> carbapenem β-Lactam antibiotic – Dosage: 500mg to 1gm IV every 12 to 8 hours Administration: This medication has a very short half-life once mixed, so we attach the vial of medication via a Vial mate or Add-Ease device. This allows the Vial of medication to be connected to the bag of diluent.  … Continue Reading →




Levofloxacin (Levaquin)


Class of Antibiotic > fluoroquinolone –  inhibits protein synthesis by interfering with topoisomerase. Dose: 500mg IV once per day, typically comes in pre-mix bags of 100ml. Administration: Gravity Drip




Merropenem (Merrem)


Class of antibiotic> carbapenem β-Lactam antibiotic- Dosage: 1gm IV every 12 to 8 hours Administration:  This Antibiotic has a very short half-life once mixed, so we attach the vial of medication via a Vial mate or Add-Ease device. The Vial mate or Add-Ease System allows the Vial of medication to be connected to the bag … Continue Reading →




Metronidazole (Flagyl)


Class of antibiotic> nitroimidazole. This drug inhibits bacterial nucleic acid synthesis, resulting in bacterial cell death, used against protozoa such as Trichomonas vaginalis, amebiasis, and giardiasis. Metronidazole is extremely effective against anaerobic bacterial infections and is also used to treat Crohn’s disease, antibiotic-associated diarrhea, and rosacea. (antibiotic, amebicide, and antiprotozoal). Dose: 500mg IV up to … Continue Reading →




Moxifloxacin (Avelox)


Class of antibiotic > fluoroquinolone –  inhibits protein synthesis by interfering with topoisomerase. Dose: 400mg IV once per day. Administration: Premixed IV bags for gravity drip




Rifampin (Rifadin)


Class of antibiotic > rifamycin – inhibits RNA polymerase in bacteria. Dose: 300mg IV twice per day or 600mg IV once per day in 500ml Normal Saline. Administration: This medication has a very short half-life once mixed, so we attach the vial of medication via a Vial mate or Add-Ease device. The Vial mate or … Continue Reading →




Tigecycline (Tygacil)


Class of antibiotic > glyclycline (although it is in its own class, it is similar in structure to tetracyclines. Technically it is a derivative of minocycline) – Inhibits protein synthesis of bacterial cell walls (prokaryotic translation) by binding to the 30s subunits of mRNA.  Good activity against susceptible gram-negative, gram-positive, and anaerobes including MRSA. Dose: … Continue Reading →




Vancomycin (Vancocin)


Class of antibiotic > glycopeptide – inhibits cell wall synthesis in gram-positive bacteria. Dose: variable – dependent on patient weight, kidney function, etc.  Typically given one to two times per day, diluted in 250-500ml of Normal Saline depending on dose.  Weekly labs draws for kidney function and peak  and trough levels of the antibiotic are … Continue Reading →