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Doctor insights on: Long Term Effects Of Cephalexin

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WHAT IS THE LONG TERM SIDE EFFECTS OF TAKING NITROFURITOIN AND CEPHALEXIN TOGETHER?

WHAT IS THE LONG TERM SIDE EFFECTS OF TAKING NITROFURITOIN AND CEPHALEXIN TOGETHER?

Probably safe: It is unusual to require both these antibiotics at the same time. Confirm with the prescribing doctor (s) that both are needed. However, if needed, they should not interact: there are no known increased side effects from taking both at once. ...Read more

Dr. Milroy Samuel
289 Doctors shared insights

Keftabs (Definition)

Keftabs is a first generation cephalosporin which is a kind of cephalosporin type drug (anti-bacterial ...Read more


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Derm rx'd 1000mg cephalexin for acne, 3mo supply. Are there long term effects of taking antibiotics for that long or longer?

Derm rx'd 1000mg cephalexin for acne, 3mo supply. Are there long term effects of taking antibiotics for that long or longer?

Yes: Determining risk vs benefit is what we do every day for every patient we prescribe treatments or recommend even an Aspirin a day... ...Read more

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How to store antibiotics for long term? I have cephalexin and amoxiclav. What best temperature to store?

How to store antibiotics for long term? I have cephalexin and amoxiclav. What best temperature to store?

Storing Medications: You want to keep them at room temperture protected from light. Although they do loos effect overtime and you really should take the prescribed course so there never should be left over antibiotics in a prescription. ...Read more

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I am a female, 40's, taking 250 mg of cephalexin for over 5 years 1x daily for cystic acne with probiotic. Should I be concerned with long term use?

I am a female, 40's, taking 250 mg of cephalexin for over 5 years 1x daily for cystic acne with probiotic. Should I be concerned with long term use?

I would: Antibiotics tend to lose effectiveness with time due to bacteria developing resistance to it. You don't mention how effective it's been for you, so more information in that direction may be helpful as well. Probiotic supplement is a must with the use of antibiotic, whether short or long term, but you may ask your derm doc if there are other options available in this day and age. ...Read more

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What is the long term effect of taking keflex?

What is the long term effect of taking keflex?

Antibiotics: Taking antibiotics without prescription can have many bad effects. If prescribed for some reason discuss the alternatives, benefits and risks of long term therapy with your doctor. Sometimes depending on the condition treated the benefit outweights the risk. Sometimes its the other way around. ...Read more

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I'm on long term keflex for reocurring uti. They found staph in urine, now on 7 day course antibiotics (alprim) what's staph how did I get it??

I'm on long term keflex for reocurring uti. They found staph in urine, now on 7 day course antibiotics (alprim) what's staph how did I get it??

May be contamination: Staphylococcus species are commonly found from the skin. It is possible that contamination of the urine sample occurred. However, if you are continuing to have infections proven by cultures, then an evaluation to rule out anatomic abnormalities is needed. This included imaging to make sure the kidneys/ureters are normal and a cystoscopy to ensure the bladder is normal. Talk to a urologist ...Read more

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I'm on Alprim or Keflex for long term treatment for recurrent uti's. I usually have E. coli but sometimes staph?? I still get uti on my antibiotics!

I'm on Alprim or Keflex for long term treatment for recurrent uti's. I usually have E. coli but sometimes staph?? I still get uti on my antibiotics!

Resistant UTI: Bacteria causing UTI vary widely in antibiotic susceptibility, and the more frequently UTIs recur or are treated, the higher the chance of an antibiotic-resistant infection. Resistance to both trimethoprim (Alrpim) and cephalexin (Keflex) isn't rare, especially after repeated treatmnt. You need a urine culture with testing of the bug for the best antibiotic. See a doctor about it. Good luck! ...Read more

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Was already taking Cipro (ciprofloxacin) long term for pseudomonas. Got sick (sore throat and ear infection). Today PCP prescribed Keflex. Should be ok?

Was already taking Cipro (ciprofloxacin) long term for pseudomonas. Got sick (sore throat and ear infection). Today PCP prescribed Keflex. Should be ok?

Should be fine: The symptom pattern you describe can be caused by viruses or bacteria.It emerged in spite of the Cipro, (ciprofloxacin) so we know if it is a bacteria it is resistant to that med. The Keflex is a good basic med and can work when taken concurrently. If you don't see improvement within 3 days contact your PCP. ...Read more

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I stopped taking cephalexin, but I'm still getting the side effects. How long will these last?

More info: If you tell us the specific side effects you are experiencing we are more likely to be able to provide a helpful answer. Consider resubmitting with clarification. ...Read more

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How long until I see the effects of prednisone for an allergic reaction to cephalexin, severe rash?

How long until I see the effects of prednisone for an allergic reaction to cephalexin, severe rash?

A few days: You should start seeing improvement hopefully within a few days. Using a topical steroid cream with the oral steroid can also help quicken recovery. If it is not improving, let your physician know. ...Read more

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For how long is cephalexin capsule good for?

Duration of action?: The duration of action of Keflex is about 12 hours
the shelf life of Keflex is 2-3 years if stored well. ...Read more

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Can you tell me how long does it take for 500mg cephalexin capsules to get out of your system?

Can you tell me how long does it take for 500mg cephalexin capsules to get out of your system?

Short half-life: Cephalexin has a short half-life, about an hour or maybe longer depending on the patient's kidney function. If you notice, you are supposed to take it multiple times a day -which is why... the body washes it out pretty quickly. Usually after about five times the half-life, the medicine is totally gone... so depending on 'when' you took your last dose, it should be out within a day. Hope that helps ...Read more

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How long will it take cephalexin 500mg to work for treating an infection?

How long will it take cephalexin 500mg to work for treating an infection?

Cepahlaxin: If the infection is a susceptible strain, it will take a few days to a week or so depnding where and how bad the infection is. ...Read more

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Went back to dr for folliculitis and he gave me another 10 day dose of cephalexin how long does it take to heal and how do you know if it is healing?

Went back to dr for folliculitis and he gave me another 10 day dose of cephalexin how long does it take to heal and how do you know if it is healing?

Maybe: The time varies. The real question is did it get better with the cephalexin or not. If it did, then you just need more time. If it did not, then maybe you are on the wrong antibiotic. ...Read more

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If what I have is staph infection after taking cephalexin 500mg tid how long would it take to clear up and how long should I take the cephalexin?

If what I have is staph infection after taking cephalexin 500mg tid how long would it take to clear up and how long should I take the cephalexin?

Staph infection: Your question cannot be answered without knowing what type of infection you have, the sensitivity of the organism, and whether it is in an area in which Cephalexin penetrates well. In addition it may be necessary to take this more than three times a day. Need far more info. ...Read more

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Taking Cephalexin for an open wound on my foot. Been taking for 17 days 3 times per day as prescribed but I'm nervous it's been too long on this?

Taking Cephalexin for an open wound on my foot. Been taking for 17 days 3 times per day as prescribed but I'm nervous it's been too long on this?

Osteomyelitis: I understand that you may feel that you have been on this antibiotic therapy for too long. I do not know the specifics of your case but my guess would be that your Dr is concerned that your foot wound infection has spread to your bone, this is called osteomyelitis. This would require more intense and prolonged antibiotic treatment. Get well soon! ...Read more

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How long does it take UTI symptoms of dementia like state in elderly to go away she is on ic cephalexin since Saturday?

How long does it take UTI symptoms of dementia like state in elderly to go away she is on ic cephalexin since Saturday?

Here are some. ..: The relevance of the contents in this Q is unclear, but my sifting through it suggests concerning her mental alteration possibly related with symptomatic UTI. If so, the duration of optimal recovery may widely vary in part because many elderlies are taking tranquilizers / antidepresents. Besides they have multiple concomitant medical issues. So, it's hard to blame UTI as sole cause of such change ...Read more

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7f on cephalexin for 3dys and still has enlarged tonsils and feels enlarge under chin. How long does it take to go bk to normal after a positivestrep?

7f on cephalexin for 3dys and still has enlarged tonsils and feels enlarge under chin. How long does it take to go bk to normal after a positivestrep?

3-4 days: Most individuals with streptococcal pharyngitis usually appear to recover in 3-4 days. Cephalexin is an appropriate choice for this infection. If no improvement and you feel enlargement under the chin, I would be worried about tonsillopharyngeal cellulitis or abscess formation and would recommend to see the PCP. ...Read more

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I have allergic reaction from antibiotic cephalexin. What is the best antihistamine and how long will it take to clear up, also now have swollen face?

I have allergic reaction from antibiotic cephalexin. What is the best antihistamine and how long will it take to clear up, also now have swollen face?

Have you been seen?: This is an urgent situation. Hopefully, you have been seen by a physician. If not, proceed to the ER if the swelling involves the mouth (potential for progression to throat and breathing incapacity). If you are improved, then an urgent visit in the morning (or Virtual Consult) is recommended for prednisone (for phenomenon of delayed reaction). Cetirizine 10mg twice a day if no contraindications ...Read more

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My 14 yr old son is going to start taking 500 mg of cephalexin twice a day for acne. Is it safe to take this for a long period of time?

My 14 yr old son is going to start taking 500 mg of cephalexin twice a day for acne. Is it safe to take this for a long period of time?

It is safe: This regimen is safe if properly managed by the prescribing doctor. Your dermatologist selected this particular antibiotic for a clinical reason, & his/her recommendations should be followed. Cephalexin is often used for pustular acne that tests positive for staph or for acne that has been resistant to the typical antibiotic, tetracycline, which can be contraindicated in an immature 14 year old ...Read more

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Ciprodex &cephalexin 4 severe ear infection...24 hours later and still in unbearable pain....can't function...how long till kicks in how can I ease it?

Ciprodex &cephalexin 4 severe ear infection...24 hours later and still in unbearable pain....can't function...how long till kicks in how can I ease it?

It may take time: It seems you are being treated for Otitis Externa which can be really painful and it may take more than 24 hours may be 3to 5 days for it to control your pain. You can take over the counter pain med like Ibuprofen or Tylenol (acetaminophen) if no allergy or other contraindication. Or call your doctor and get prescription Analgesic.. ...Read more

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My question is in regards to my acne. I was prescribed cephalexin & prednisone, how long does it take for the medicine to start working? The first few days I broke out ALOT even in my forehead (my problem was only in my jawline/cheeks).

My question is in regards to my acne. I was prescribed cephalexin & prednisone, how long does it take for the medicine to start working? The first few days I broke out ALOT even in my forehead (my problem was only in my jawline/cheeks).

Acne????: You are not describing a treatment for acne. Ask the Dr what is the diagnosis. Probably you need a dermatologist. Is is unusual and often inappropriate to use both prednisone and cephalosporin at the same time. ...Read more

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How long for cellulitis of the hand (spread to mid wrist) 2 heal for a patient w a weakened immune system? Caused by blown vein post-IV. On cephalexin

How long for cellulitis of the hand (spread to mid wrist) 2 heal for a patient w a weakened immune system? Caused by blown vein post-IV. On cephalexin

TimeHealsAllWounds: Hard to say. Depends on the severity of the infection, whether the infection had extended inside the vein, the degree of your immunosuppression and the susceptibility of the infection to the cephalexin.Healing tends to be slower at first then accelerate as healing progresses. But for a very general ballpark estimate for you, expect the majority to heal over 2 weeks, then more over the next 1-2 weeks. ...Read more

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How long does keflex take to work?

How long does keflex take to work?

7-10 days: Antibiotics such as Keflex can work in 7-10 days sometimes shorter- it is important to complete the course of therapy prescribed for you in order to completely eradicate the infection. Symptoms often go away prior to completion- but take them all to avoid a repeat infection or a resistant infection which is much more difficult to treat. ...Read more

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I'm taking keflex isit OK tohave a few beers. Today is my last day taking them...? How long should Iwait

I'm taking keflex isit OK tohave a few beers. Today is my last day taking them...? How long should Iwait

Exercise caution: Alcohol, in general, is not the drug I would like to have on board if I have an infection - even low levels can impair our immune response, both in terms of white blood cells that gobble up bacteria and viruses, and the production of antibodies to kill the invaders. One or two beers is unlikely to cause many problems, but would keep in mind also that safe drinking is 1 beer/d in women, 2/day men. ...Read more

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I'm on Day 2 of Keflex for cellulitis. How long until I start seeing reduced redness and some pain relief?

See below: If the diagnosis and the antibiotic had been a match, you would have seen changes in the lesion and pain relief. It would be prudent to contact your doctor for a re-evaluation. ...Read more

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How long does it take keflex to get out of your system?

How long does it take keflex to get out of your system?

Not long: Keflex has a short half life. After you stop taking it it will be out of your system in 10-12 hours assuming normal kidney function. ...Read more

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How long would it take until keflex is out of your system?

About 72 hrs: The duration of action of Keflex is about 12 hrs. After a course of the drug you can expect it to clear in about 72 hrs. ...Read more

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How long will an allergic reaction rash from keflex last? I was on the pills for 13 days before the dr finally said it was an allergic reaction

How long will an allergic reaction rash from keflex last? I was on the pills for 13 days before the dr finally said it was an allergic reaction

Days to weeks: Can last days to weeks. Itching usually goes away within a week. But lesions from rash can last several weeks before they completely fade. ...Read more

Dr. James Lin Dr. Lin
2 doctors agreed:
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How long after being on keflex for kidney infection before the pain goes away?

Dr. James Lin Dr. Lin
2 doctors agreed:
How long after being on keflex for kidney infection before the pain goes away?

Here are some. ..: Most UTIs in females are uncomplicated and in lower urinary tract - bladder & urethra. If the offending bugs are sensitive to antibiotic, within 1-2 days, the treated patients should feel better and become symptom-free in 4-7 days but not always for few. If indeed UTI involves kidneys, the pattern of improvement is similar but take longer to completely go away and Rx should be x2 wks at least... ...Read more

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I received a shot of rocephin (ceftriaxone) this morning for strep. How long do I need to wait to take the keflex my Dr wrote?

I received a shot of rocephin (ceftriaxone) this morning for strep. How long do I need to wait to take the keflex my Dr wrote?

Minimum 12 hours.: When you are given a shot of Rocephin, (ceftriaxone) usually the drug stays in your body for about 24 hours. So it makes sense to wait for one day before starting the Keflex. Sometimes you can start after 12 hours if the infection is severe. ...Read more

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How long after taking antibiotic keflex until my birth control is effective?

Immidiately: Although certain antibiotics interact with birth control pills to render them less effective, Keflex is not really among those notorious for doing so. In addition, it does not really hang around too long so that once you stopped taking them, within 24 hours, it is already out of your system. ...Read more

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Just finished keflex for cellulitis infection and responded well. Skin no longer hot or red but still a little swollen. Been 11 days, should I worry?

Just finished keflex for cellulitis infection and responded well. Skin no longer hot or red but still a little swollen. Been 11 days, should I worry?

Not necessarily: It take some time for antibiotics to work and the inflammatory reaction to subside. If concerned see the doctor who gave you the antibiotics. ...Read more