Key takeaways
Tobramycin (generic name) and Azithromycin (brand name Zithromax) are both antibiotics, but they belong to different classes and are used in different ways. Tobramycin is an aminoglycoside antibiotic given by injection, typically in a hospital or healthcare setting, and is used to treat severe infections like sepsis, pneumonia, and meningitis. It requires close monitoring due to potential serious side effects like hearing loss and kidney damage. On the other hand, Azithromycin is a macrolide antibiotic taken orally or by injection, often as a convenient Z-Pak, and is used to treat infections such as strep throat, sinus infections, and pneumonia. Azithromycin is generally taken once daily for a shorter duration (3 to 5 days) and is available in tablet, liquid, and injectable forms. While both medications can cause diarrhea and other gastrointestinal issues, Azithromycin also carries risks for heart rhythm problems and liver damage. Tobramycin is more likely to be used in a controlled medical environment due to its administration method.
