Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Cephalexin (generic name: cephalexin) and Avelox (generic name: moxifloxacin) are both antibiotics, but they belong to different classes and treat infections differently. Cephalexin is a cephalosporin antibiotic that works by preventing bacteria from forming a protective covering, making it effective against a wide range of bacterial infections like UTIs, ear infections, and skin infections. It's typically taken 2 to 4 times a day and is available in generic forms like capsules, tablets, and liquid suspensions. On the other hand, Avelox is a fluoroquinolone antibiotic that kills bacteria by blocking enzymes they need to grow and repair their genetic material. It's usually prescribed for more serious infections or when other antibiotics aren't suitable, and it's availible as a generic that is taken once daily. Avelox can cause serious side effects like tendon rupture and nerve damage, making it less commonly used compared to cephalexin. While both medications can cause common side effects like nausea and diarrhea, Avelox has additional risks like heart rhythm problems and severe allergic reactions. Cephalexin is generally considered safe during pregnancy and breastfeeding, whereas the safety of Avelox in these conditions is not well-established.
Cephalexin
Moxifloxacin (Avelox)
Cephalexin
Moxifloxacin (Avelox)
Summary of Keflex vs. Avelox
Summary for Cephalosporin antibiotic
Prescription only
Cephalexin is a common antibiotic that's used to treat many different bacterial infections including urinary tract infections (UTIs), ear infections, and sinus infections, to name a few. Cephalexin is a cephalosporin antibiotic that kills bacteria to fight the infection. It's safe to use in people over the age of 1, and it's typically taken by mouth 2 to 4 times per day. This medication is available as a lower-cost generic capsule, tablet, and suspension; the brand name Keflex is no longer available. Side effects can include nausea, vomiting, and diarrhea.
Summary for Fluoroquinolone antibiotic
Prescription only
Moxifloxacin (Avelox) is a fluoroquinolone antibiotic. It can treat different types of infections, including certain skin infections and lung infections, in adults. But because moxifloxacin (Avelox) can cause serious side effects, such as tendon rupture and nerve damage, it's usually only prescribed for more serious infections or when safer options aren't available. Moxifloxacin (Avelox) is taken by mouth, typically once daily. Some of the more common side effects of this medication include nausea, diarrhea, and headache. Moxifloxacin is generic only, brand-name Avelox is no longer available.