Is cephalexin a penicillin?

Keflex (cephalexin) belongs to a class of antibiotics called cephalosporins. They are similar to penicillin in action and side effects. They stop or slow the growth of bacterial cells by preventing bacteria from forming the cell wall that surrounds each cell.

What drug group is amoxicillin?

Amoxicillin belongs to the group of medicines known as penicillin antibiotics. It works by killing the bacteria and preventing their growth. However, this medicine will not work for colds, flu, or other virus infections. This medicine is available only with your doctor’s prescription.

What is better for tooth infection amoxicillin or cephalexin?

While penicillin, amoxicillin, amoxicillin and clavulanate potassium (Augmentin), and clindamycin are the first-line antibiotic treatments for most dental infections, cephalexin may be considered when you have an allergy to those medications. Cephalexin can be effective for treating dental abscesses and gum infections.

How many hours apart should I take cephalexin 500mg?

The usual dose is 250 mg taken every 6 hours, or a dose of 500 mg every 12 hours may be given. If you have a severe infection, your doctor may give you a larger dose. 1–4 grams per day taken in divided doses. The usual dose is 250 mg taken every 6 hours, or a dose of 500 mg every 12 hours may be given.

What can you not take with sulfamethoxazole?

Some products that may interact with this drug include: “blood thinners” (such as warfarin), dofetilide, methenamine, methotrexate. This product may interfere with certain laboratory tests, possibly causing false test results.

Does sulfamethoxazole have penicillin in it?

Yes, Bactrim DS contains sulfamethoxazole and trimethoprim. It is in no way related to Penicillin. It is safe to take if you are allergic to Penicillin. Bactrim DS is an antibiotic and belongs to a drug class called sulfonamides.

How safe is cephalexin?

Cephalexin is safe in children at recommended dosages. People with kidney problems are generally prescribed a lower dose of cephalexin, depending on the creatinine clearance. In older adults, cephalexin is safe, but this population is more likely to have decreased kidney function, so dosing may be lower.