Hello! Please note that all links on this blog leading to Amazon are affiliate links. This allows us to maintain an independent opinion when reviewing brands while earning commission when you shop. Please support us and go on a shopping spree with Amazon :) Show 9 Facts About Cephalexin (Keflex) For UTI & 12 Tips For Treating UTI With Antibiotics Written by Anastasia Visotsky, medically reviewed by Dr. Ogunyemi Personally, I have taken Cephalexin to treat my UTIs twice; sat other times I was prescribed Macrobid and Cipro. To be frank, I tolerate antibiotics very well, but this doesn’t mean that I like them. Unfortunately, antibiotics are sometimes a necessary evil. Here are some of my tips for successfully taking antibiotics for your UTI. First of all, make sure that antibiotics are the right choice for you. If you only have bladder pain and it burns during or after urination but your urine is clear, antibiotics might not be the best solution. In fact, if you keep having UTIs, you might need to dig a little deeper (here are 25 most common UTI causes) to address the root cause of your UTIs, rather than simply repeating the cycle of antibiotic treatment. If you see blood in your urine, it’s cloudy or has a strange smell, it may be time for antibiotics. Also, if you have fever or chills, pain in your flank and are not able to keep anything down, it’s really time to see your doctor. Cephalexin (KEFLEX) & UTI: My ExperienceI had my share of UTIs several years ago. Fortunately, I was able to get rid of this chronic problem, mostly by relying on a specific type of probiotics and some lifestyle changes. If this is your first UTI and you are treating it with Cephalexin, there is no guarantee that the UTI won’t come back. Remember, the antibiotics will kill the bacteria that invaded your bladder, but antibiotics will not address any of the underlying health conditions that may have caused the UTI in the first place. If you do not want to experience the horrors of UTI again, make sure to implement smart prevention strategies, and do not rely solely on the antibiotics. Here are some tips to get you started:
By the time you take your first antibiotic pill, you are probably desperate for relief and are wondering how long it will take the Cephalexin will work. It should work pretty quickly. I felt almost immediate relief when taking Cephalexin for my UTI symptoms.
Important: just because your symptoms are gone, don’t stop taking the Cephalexin early. While it may have killed enough bacteria to stop your symptoms, you run the risk of growing bacteria that can survive Cephalexin, or in other words drug-resistant bacteria. Can you boost Cephalexin performance?However, if you truly want Cephalexin to work, make sure to boost the performance of antibiotics with bacterial biofilm enzymes and a diet that keeps your urine alkaline. Haven’t heard about bacterial biofilms? In a nutshell, the bacteria group together on the surface of your bladder and release “slime” to protect themselves from antibiotics. What to expect when taking Cephalexin?
Cephalexin belongs to a category of antibiotics called cephalosporins. I recently came across a study that demonstrated that another drug from the cephalosporin group (Cephadroxil) promotes vaginal colonization with Escherichia coli (or E. coli), the number one bacteria causing UTIs. The study looked at monkeys and the antibiotic was placed directly into the vagina (not given by mouth). While another study shows that low dose daily cephalexin does not affect the vaginal flora, it is definitely possible that if you take full dose Cephalexin regularly, this e may have a detrimental effect on the vaginal microbiome. Unfortunately, if your vagina is colonized with E. coli, you are almost guaranteed to have repeated UTIs after sex. Healthy vaginas normally have the ability to deter E. coli bacteria and therefore play a key role in preventing UTIs. If your vaginal health is compromised, your risk of chronic UTIs is higher. Cephalexin Could Promote Yeast InfectionBeneficial bacteria Lactobacilli are present in healthy vaginas and help to maintain an acidic pH that deters pathogens and yeast. Like any other antibiotic, taking full dose Cephalexin regularly can deplete your good bacteria and yeast infection may be a side effect. Unfortunately, once your good bacteria are depleted, you are not only more likely to get a yeast infection but also more vulnerable to infection from your own E. coli. This, in turn, could lead to recurrent UTIs. Cephalexin For Chronic UTIIf this is not your first UTI, know one thing: you may not be fighting single-celled free-floating bacteria in your bladder. Most likely, you are fighting bacterial biofilms. Cephalexin stops the growth of the cell wall, which bacteria need to survive. However, bacteria eventually learn how to hide from the antibiotic attack, allowing them to become resistant to Cephalexin. One method is for them to team up, cover themselves with a protective “slime,” and hide in the deeper layers of your bladder lining. This allows bacteria to wait until you stop taking antibiotics before renewing their activity. This bacterial method of defense is called “bacterial biofilms”. Your UTI-like Symptoms after CephalexinThere are two main scenarios that could explain why you still feel some or all of the UTI-like symptoms after taking antibiotics. First, you could be resistant to this particular antibiotics. Second, it may not have been a UTI. Obviously, it is critical to differentiate between these two options. Here is my in-depth interview with urologist Dr. Lisa Hawes explaining the difference between the two and what you can do about UTI symptoms that persist after antibiotic treatment. Bacterial ResistanceHere are some questions to consider:
A systematic review of 15 studies, including 1,644 women aged over 75 years, concluded that a short course of antibiotics (between 3 and 6 days, depending on the antibiotic) are as effective as long courses (7–14 days) for treating uncomplicated cystitis in older women. The longer the duration of (unnecessary) treatment, the higher your chances of developing antibiotic-resistant bacteria. However, do not shorten the prescribed course yourself and always consult with your prescribing physician. Frequent Side Effects Of CephalexinPersonally, when I took Cephalexin for my UTI, I tolerated it well. However, mild side-effects are possible. Aside from yeast infections, the top three complaints we’ve seen related to Cephalexin are:
Other possible side effects include:
Other Antibiotic Options Besides Cephalexin For UTI:
There are no conclusive studies of using Cephalexin in pregnant women. But from what we know so far, Cephalexin is very effective and complications to mother and baby are very rare. Be Careful If Allergic To Penicillin A study in the Journal of Investigational Allergology and Clinical Immunology found that if you have an allergy to penicillin, your chances of also having an allergy to cephalexin are almost 11%. However, other researchers debunked this thinking by proposing that a history of penicillin allergy is a general risk factor for allergies to any antibiotics and is not specific to cephalosporins, such as Cephalexin. Also, it is possible that the risk of allergy to other antibiotics with a penicillin allergy is less than 10%. 12 Tips When Treating UTI With Antibiotics
What type of antibiotics have you tried? Leave me a comment, join our Facebook group. I’d love to hear from you. UTI Guides
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Anastasia VisotskyI am a former chronic UTI sufferer and write about the latest UTI-related research, advocating for the mindful use of antibiotics, smart preventive tactics, and focus on human microbiota. How long after taking cephalexin will I feel better?You'll usually start to feel better in a few days, depending on the type of infection you have. The most common side effects of cefalexin are feeling sick (nausea) and diarrhoea.
Is cephalexin a strong antibiotics?Cephalexin is considered a broad-spectrum antibiotic because it's effective in fighting many common bacteria, including: Streptococcus pneumoniae. Streptococcus pyogenes.
What should I avoid while taking cephalexin?Cephalexin and multivitamin with minerals should not be taken orally at the same time. Products that contain zinc may interfere with the absorption of cephalexin into the bloodstream and reduce its effectiveness. You should take multivitamin with minerals at least three hours after taking cephalexin.
What infections does cephalexin treat?Cephalexin is used to treat certain infections caused by bacteria such as pneumonia and other respiratory tract infections; and infections of the bone, skin, ears, , genital, and urinary tract. Cephalexin is in a class of medications called cephalosporin antibiotics.
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