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No use esta medicina si es alérgico a Cefalexina, o a otros antibióticos cefalosporinas, como:
- cefaclor (Raniclor);
- cefadroxil (Duricef);
- cefazolin (Ancef);
- cefdinir (Omnicef);
- cefditoren (Spectracef);
- cefpodoxime (Vantin);
- cefprozil (Cefzil);
- ceftibuten (Cedax);
- cefuroxime (Ceftin); o
- cephradine (Velosef), y otros.
Para asegurarse que Cefalexina es seguro para usted, dígale a su médico si usted tiene:
- una alergia a alguna droga (especialmente penicilinas);
- enfermedad del riñón; o
- un historial de problemas intestinales, como colitis.
Las forma en líquido de Cefalexina puede contener azúcar. Esto podría afectarlo si usted sufre de diabetes.
No se espera que Cefalexina le haga daño al bebé nonato. Dígale a su médico si usted está embarazada.
Cefalexina puede pasar a la leche materna y causarle daño al bebé lactante. Dígale a su médico si está dando de amamantar a un bebé.
Is Cefalexina safe to take if I'm pregnant or breastfeeding?
Cefalexina is excreted in breast milk. Cefalexina should be used with caution or stopped when breastfeeding.
More common side effects
The more common side effects of Cefalexina oral capsule include:
- irritation or inflammation of your stomach lining
- stomach pain
If these effects are mild, they may go away within a few days or a couple of weeks. If they’re more severe or don’t go away, talk to your doctor or pharmacist.
Serious side effects
Call your doctor right away if you have serious side effects. Call 911 if your symptoms feel life-threatening or if you think you’re having a medical emergency. Serious side effects and their symptoms can include the following:
- Allergic reactions. Symptoms can include:
- trouble breathing
- swelling of your face, lips, tongue, or throat
Disclaimer: Our goal is to provide you with the most relevant and current information. However, because drugs affect each person differently, we cannot guarantee that this information includes all possible side effects. This information is not a substitute for medical advice. Always discuss possible side effects with a healthcare provider who knows your medical history.
Cefalexina oral capsule can interact with other medications, vitamins, or herbs you may be taking. An interaction is when a substance changes the way a drug works. This can be harmful or prevent the drug from working well.
To help avoid interactions, your doctor should manage all of your medications carefully. Be sure to tell your doctor about all medications, vitamins, or herbs you’re taking. To find out how this drug might interact with something else you’re taking, talk to your doctor or pharmacist.
Examples of drugs that can cause interactions with Cefalexina are listed below.
Allergic reactions in the form of rash, urticaria, angioedema, anaphylaxis, erythema multiforme, Stevens-Johnson syndrome, or toxic epidermal necrolysis have been reported with the use of KEFLEX. Before therapy with KEFLEX is instituted, inquire whether the patient has a history of hypersensitivity reactions to Cefalexina, cephalosporins, penicillins, or other drugs. Cross-hypersensitivity among beta-lactam antibacterial drugs may occur in up to 10% of patients with a history of penicillin allergy.
If an allergic reaction to KEFLEX occurs, discontinue the drug and institute appropriate treatment.
What other drugs will affect Cefalexina?
Tell your doctor about all your other medicines, especially:
This list is not complete. Other drugs may affect Cefalexina, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.
Always tell your doctor about any medications you are taking, including other prescription drugs, over-the-counter (OTC) drugs, vitamins, dietary supplements, and herbal remedies.
Certain drugs are known to interact with Cefalexina and may cause problems:
Cefalexina may increase blood levels of the type 2 diabetes drug metformin. This could increase your risk for side effects.
Cefalexina may build up in the blood when combined with the medication probenecid (Benemid, Probalan), which is used to treat gout.
In some cases, probenecid may be used along with antibiotics to increase antibiotic strength.
Using antibiotics may make birth control pills ineffective. A second form of contraception is recommended while you're on antibiotics.
The dose of Cefalexina for adults is 1 to 4 grams in divided doses. The usual adult dose is 250 mg every 6 hours. Some infections may be treated with 500 mg every 12 hours. Children are treated with 25-100 mg/kg/day in divided doses. The dosing interval may be every 6 or 12 hours depending on the type and seriousness of the infection.
What Other Drugs Interact with Cefalexina?
If your doctor has directed you to use this medication, your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor, health care provider or pharmacist first.
Severe interactions of Cefalexina include:
Serious Interactions of Cefalexina include:
Moderate Interactions of Cefalexina include:
Cefalexina has moderate interactions with at least 56 different drugs.
This information does not contain all possible interactions or adverse effects. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share this information with your doctor and pharmacist. Check with your health care professional or doctor for additional medical advice, or if you have health questions, concerns or for more information about this medicine.
COMMON BRAND(S): Keflex
GENERIC NAME(S): Cefalexina
OTHER NAME(S): Cefalexina Tablet
This medication is used to treat a wide variety of bacterial infections. This medication is known as a cephalosporin antibiotic. It works by stopping the growth of bacteria.
This medication will not work for viral infections (such as common cold, flu). Unnecessary use or misuse of any antibiotic can lead to its decreased effectiveness.
Rated Cefalexina for Bacterial Endocarditis Prophylaxis Report
Prescribed 500mg 4 times a day to treat some infected ingrown hairs on my groin and shaft. Was told it should clear up after 5 days, didn't so now on second batch. Wasnt told of the side effects at all and have found that it has caused the lymph nodes in my groin and thighs to become inflamed causing huge amounts of discomfort and some pain, a lot of itchiness and some redness, the ingrown hairs have become blistered and sore, and my shaft has swollen by double (no pain yet). Whole groin area is tender to touch and has small amounts of pain even when lying down. Would recommend finding an alternative to this drug
If you're allergic to penicillin, there's about a 10 percent chance that you will also be allergic to Cefalexina.
You could be at higher risk for side effects from Cefalexina if you have a history of liver, kidney, or colon disease, so tell your doctor about any of these conditions as well.
Like other antibiotics, Cefalexina may cause an overgrowth of bacteria called Clostridium difficile in your colon. Toxins produced by C. difficile can cause diarrhea and a condition called pseudomembranous colitis.
Being on other antibiotics may also increase your risk for pseudomembranous colitis, so tell your doctor about any recent antibiotic use.
Rated Cefalexina for Bacterial Infection Report
Absolutely horrendous drug. I was prescribed Keflex (500mg, 4 per day until finished) for a severe kidney infection. A week into the medicine and I was still experiencing severe kidney pain. It took two weeks for the kidney infection to clear, when I could have easily gotten sepsis. Then the side effects. It's almost been two months since finishing the prescription and I am still having major GI tract issues. I have lost over 10 pounds without trying, and I was fairly thin to begin with. I look pale all the time. I'm constantly dehydrated, still experiencing diarrhea, can't eat without gagging, and don't even get me started on the fatigue and muscle aches. My GI tract is so inflamed overall that it's hard to breathe. I have seen a doctor and even gotten blood labs done, but he had no idea what is still wrong with me. This drug is a killer. AVOID AT ALL COSTS.