keflex (CEFALEXIN)

What is Keflex?

Keflex is a pill you take to fight infections in your skin and other body tissues. Your body absorbs it quickly. Higher doses mean higher levels of the medicine in your blood. Most of it leaves your body through your urine within a few hours. Another medicine called probenecid can slow down how quickly Keflex leaves your body.

What is the usual dose of Keflex?

For adults with skin or soft tissue infections, the medicine is taken either 250mg four times a day, or 500mg twice a day. Kids aged 5 to 12 take 250mg three times a day; the doctor might give a bigger dose if the infection is really bad. It's not safe for children under 5.

How do I take Keflex?

You can take Keflex anytime, with or without food. It works a little better on an empty stomach, but it's fine either way. There's nothing special you need to avoid eating.

For how long do I take Keflex?

The duration varies based on the infection being treated, generally lasting 7 to 14 days. For severe or recurrent infections, the course may extend beyond this period.

 

What disease or symptom is Keflex used for?

Keflex is an antibiotic that fights bacteria causing skin and soft tissue infections like boils or cuts. It only works on certain bacteria, so it's important to make sure it's the right medicine for your infection. Doctors follow guidelines to ensure antibiotics are used correctly to prevent resistance, meaning the bacteria become harder to treat in the future.

How long does it take for Keflex to start working?

The medicine Keflex shows up in your blood within an hour, reaching its highest level then. It stays at a helpful level in your blood for 6 to 8 hours. You can still find some of the medicine in your blood 6 hours after taking it.

Is Keflex effective?

Keflex is highly effective against a variety of bacteria, including Staphylococcus aureus and Streptococcus pneumoniae. Clinical studies support its efficacy in treating infections when used as prescribed.

How do I know if Keflex is working?

Doctors test Keflex in labs and on people to figure out the right dose and how well it works against infections like skin infections. They check how much of the medicine is in the blood after you take it and how much comes out in your urine to make sure it's working and safe. The medicine stays at a helpful level in your body for about 6-8 hours.

How does Keflex work?

Keflex disrupts bacterial cell wall synthesis by inhibiting specific proteins, leading to bacterial death.

Who should avoid taking Keflex?

Keflex is an antibiotic, but you shouldn't take it if you're allergic to penicillin or other similar medicines called cephalosporins. Also, people with certain sugar problems (galactose intolerance, Lapp lactase deficiency, or glucose-galactose malabsorption) should avoid it. If you have a serious allergic reaction, stop taking it right away. It can sometimes cause a serious bowel problem (colitis), and taking it for a long time can lead to other infections. If your kidneys aren't working well, you might need a lower dose. Finally, it can sometimes give a false positive result on a certain blood test (Coombs' test).

Can I take Keflex with other prescription drugs?

• Probenecid: Increases Keflex levels by inhibiting renal excretion.
• Metformin: May elevate metformin levels slightly, but clinical significance is unclear.
• Concurrent use with aminoglycosides or potent diuretics may increase the risk of nephrotoxicity.

Can Keflex be taken safely while pregnant?

Although tests haven't shown Keflex harms unborn babies, doctors are careful prescribing it during pregnancy. Its effects on fertility aren't known. It passes into breast milk, but the amount is low and disappears quickly. Doctors take extra care when giving it to breastfeeding mothers.

Can Keflex be taken safely while breastfeeding?

Keflex, a medicine, passes into breast milk. A typical dose leaves a small amount in the milk for a short time (4 hours), then it's gone. While it's a small amount, mothers who are breastfeeding should talk to their doctor before taking it.

Is Keflex safe for the elderly?

Older adults with kidney problems need to be careful with medicine doses. Their kidneys might not work as well as younger people's, so the usual adult dose might be too much. Doctors need to watch them closely and do tests to find the right, smaller dose that's safe.

How should I store Keflex?

Keep it cool. Don't let the temperature go above 30 degrees Celsius (that's about 86 degrees Fahrenheit).

Does Keflex make people tired or drowsy?

Keflex does not commonly cause fatigue or drowsiness. If you experience such symptoms, consult your doctor.

Does Keflex cause stomach upset?

Mild gastrointestinal symptoms like nausea, vomiting, or diarrhea are common. Taking the medicine with food can alleviate these effects.

Does Keflex affect sleep?

Keflex is not known to interfere with sleep.

Does Keflex make it hard to think or concentrate?

Cognitive effects like difficulty concentrating are rare. If they occur, discuss with your doctor.I didn't get that. Can you repeat?

Does Keflex affect mood?

Keflex does not typically impact mood. Any unusual changes should be reported to a healthcare provider.

Does Keflex interfere with sexual function?

Sexual dysfunction is not associated with Keflex use.

Does Keflex affect appetite?

Keflex may temporarily reduce appetite in some individuals due to nausea.

Does Keflex cause weight gain?

Weight gain is not a reported side effect.

Does Keflex cause headaches?

Headaches may occur in rare cases. Staying hydrated and resting can help alleviate symptoms.

Does Keflex limit driving?

Keflex does not impair driving ability. However, dizziness or drowsiness from the underlying infection may affect it.

Is it safe to drink alcohol while taking Keflex?

Moderate alcohol consumption is generally safe but may worsen side effects like nausea. It's best to avoid alcohol while recovering from an infection.

Is it safe to drink coffee or tea while taking Keflex?

Yes, drinking caffeinated beverages like coffee or tea does not affect the efficacy of Keflex.

Is it safe to exercise while taking Keflex?

Exercise is safe unless the underlying infection or side effects like dizziness restrict activity.

What are Keflex possible harms and risks?

Broad-spectrum antibiotics, like Keflex (a cephalosporin), can sometimes cause a serious gut infection called pseudomembranous colitis. This infection can range from mild to very dangerous. In some cases, it can show up as a positive Coombs' test, a blood test related to immune system issues. While doctors know it can happen, they don't have exact numbers on how often these problems occur.