Quick Answer: What Is Keflex Antibiotic Good For?

How long does Cephalexin 500 mg stay in your system?

Following an oral cephalexin dose, 90% of it will be out of your system within eight hours.

The body gets rid of cephalexin by excreting it in the urine.

This process can take longer in people with decreased kidney function.

Doctors adjust the cephalexin dosage when kidney disease is severe..

Does Keflex treat kidney infection?

About Keflex. Keflex is a brand name drug that’s also available as the generic drug cephalexin. Keflex belongs to a class of drugs called cephalosporins, which are antibiotics. These drugs are often used to treat infections of the bladder or kidneys.

Can I beat a bacterial sinus infection without antibiotics?

About 70 percent of sinus infections go away within two weeks without antibiotics. Consider these other forms of treatments instead of antibiotics: Decongestants. These medications are available for over-the-counter purchase.

What is the side effect of cephalexin 500mg?

Diarrhea, nausea, vomiting, or upset stomach may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. Use of this medication for prolonged or repeated periods may result in oral thrush or a new yeast infection.

Can I take cephalexin 500mg 3 times a day?

Dosage. The dose of cefalexin can vary but for most infections you will take 500mg, two or three times a day. The dose may be higher for severe infections and lower for children. Try to space the doses evenly throughout the day.

How do you take cephalexin 4 times a day?

Four times each day: this should be once in the morning, at around midday, once in the early afternoon and once in the evening. Ideally, these times are about 4 hours apart, for example 8 am, midday, 4 pm and 8 pm.

What kind of bacteria does Keflex treat?

KEFLEX is indicated for the treatment of respiratory tract infections caused by susceptible isolates of Streptococcus pneumoniae and Streptococcus pyogenes.

How quickly does Keflex work?

Cephalexin antibiotic begins to kill the bacteria causing a skin infection very quickly. However, you may not notice the skin infection improving for 2 to 3 days. Follow the directions on your cephalexin medication bottle—and finish all doses of cephalexin, even after the skin infection looks and feels better.

Is cephalexin 500mg a strong antibiotic?

Cephalexin belongs to the class of antibiotics known as cephalosporins. Cephalexin is a first-generation cephalosporin and is mainly effective against gram-positive bacteria.

Is Keflex good for sinus infection?

Results showed that cephalexin was effective in treating sinusitis and that adverse reactions were rare. Bacteriology results showed that many of the pathogens usually involved in infectious maxillary sinusitis were resistant to the recommended or frequently prescribed antibiotics.

What is the drug of choice for sinusitis?

Antimicrobial therapy is the mainstay of medical treatment in sinusitis. The choice of antibiotics depends on whether the sinusitis is acute, chronic, or recurrent. Antibiotic efficacy rates are as follows : Levofloxacin, moxifloxacin, and amoxicillin/clavulanate – Greater than 90%

Why won’t my sinus infection go away with antibiotics?

A bacterial or viral infection can also trigger the condition. The infection is often low grade. The bacteria confine themselves in stubborn “biofilms,” making it difficult for your immune system or antibiotics to find and attack them.

Is Keflex stronger than amoxicillin?

Is cephalexin or amoxicillin stronger? When dosed appropriately, both antibiotics are effective against their covered organisms. The organism coverage of cephalexin makes it effective in some conditions that amoxicillin is not, including mastitis and bone and joint infections.

What is Keflex 500mg used to treat?

Keflex (cephalexin) is a cephalosporin (SEF a low spor in) antibiotic. It works by fighting bacteria in your body. Keflex is used to treat infections caused by bacteria, including upper respiratory infections, ear infections, skin infections, urinary tract infections and bone infections.

Penicillin, erythromycin (Suprax), and first-generation cephalosporins such as cephalexin (Keflex, Keftab) are not recommended for treating acute sinusitis because of inadequate antimicrobial coverage of the major organisms.

What should you not eat when taking cephalexin?

Acidic foods such as citrus juice, carbonated beverages, chocolate, antacids and tomato-based products such as ketchup can all interfere with drug absorption. Have your child avoid these several hours before and after taking the medication, said Seidman. With the exception of yogurt, avoid dairy, said Kohlstadt.

Can you take cephalexin 500mg 4 times a day?

Dosage for respiratory tract infection 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. If you have a severe infection, your doctor may give you a larger dose. 1–4 grams per day taken in divided doses.