Compare Antibiotics: Find the Right One for Your Infection

When you have an infection, not all antibiotics, drugs designed to kill or slow the growth of bacteria. Also known as antibacterial agents, they’re not one-size-fits-all. Choosing the wrong one can mean wasted time, side effects, or even antibiotic resistance. That’s why comparing them matters—whether you’re dealing with a urinary tract infection, sinus infection, or something else entirely.

Some antibiotics, like cefixime, a cephalosporin used for respiratory and urinary infections, work well against a broad range of bacteria but may not be first-line for simple cases. Others, like nitrofurantoin, a targeted drug for uncomplicated bladder infections, are cheaper, safer for short-term use, and less likely to cause resistance. Then there’s amoxicillin, a penicillin-based antibiotic often used for ear infections, strep throat, and pneumonia, which is effective but useless if you’re allergic to penicillin. Each has a different spectrum, dosing schedule, and side effect profile. Some need to be taken multiple times a day; others can be taken just once. Some cost a few dollars; others run much higher, even as generics.

It’s not just about what kills the bacteria—it’s about what’s safe for you. If you have kidney problems, some antibiotics need dose adjustments. If you’re pregnant, certain ones are off-limits. If you’ve taken antibiotics before and got diarrhea or a yeast infection, that’s a clue. Even your location matters—some bacterial strains are more resistant in certain regions. That’s why a doctor doesn’t just pick the first name they remember. They match the bug, your history, and your body.

Below, you’ll find real comparisons between antibiotics you might actually be prescribed—cefixime vs. amoxicillin, nitrofurantoin vs. azithromycin, and others. No fluff. No marketing. Just what works, what doesn’t, and what to watch out for. Whether you’re trying to understand your prescription or just curious why your friend got a different pill, this collection gives you the facts you need to ask better questions and make smarter choices.