Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Linezolid (Zyvox) and daptomycin (Cubicin) are both antibiotics used to treat serious bacterial infections, but they have some key differences. Linezolid is an oxazolidinone antibiotic available in oral and injectable forms, while daptomycin is a cyclic lipopeptide antibiotic given only by injection. Linezolid is used for pneumonia, skin infections, and vancomycin-resistant *Enterococcus faecium* (VRE) infections, whereas daptomycin is used for skin infections and bloodstream infections caused by *Staphylococcus aureus* (staph), but not for pneumonia. Linezolid can be taken every 8 to 12 hours, while daptomycin is typically given once daily. Linezolid has a risk of serotonin syndrome when taken with certain other medications, and it interacts with foods high in tyramine. Daptomycin, on the other hand, can cause a serious muscle problem called rhabdomyolysis and is not recommended for people with severe kidney problems. Both antibiotics can cause diarrhea and have rare but serious side effects, such as nerve damage and *Clostridioides difficile* (C. diff) infection.
Linezolid (Zyvox)
Daptomycin (Cubicin)
Linezolid (Zyvox)
Daptomycin (Cubicin)
Summary of Zyvox vs. Daptomycin
Summary for Oxazolidinone antibiotic
Prescription only
Linezolid (Zyvox) is an oxazolidinone antibiotic that's used to treat adults and children with certain bacterial infections, such as pneumonia and skin infections. This antibiotic can help fight hard-to-treat infections caused by certain bacteria, such as MRSA and VRE. Linezolid (Zyvox) is available as a tablet, powder for suspension, and injection. It's typically taken every 8 or 12 hours. Some side effects include nausea, diarrhea, and headache. This antibiotic also has a rare but serious risk for serotonin syndrome from interactions with medications like antidepressants.
Summary for Cyclic lipopeptide antibiotic
Prescription only
Daptomycin (Cubicin) is an antibiotic that treats certain serious skin infections and bloodstream infections. It can fight against some bacteria that are hard to treat, such as methicillin-resistant Staphylococcus aureus (MRSA). Daptomycin (Cubicin) is given as a quick intravenous (IV) injection over a 2-minute period or as an IV infusion over a 30-to-60 minute period. The dosing depends on your age, weight, kidney function, the type of infection you have, and how severe it is. Common side effects include headache and diarrhea.