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Doctor insights on: Keflex For Strep Throat

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Strep Throat (Definition)

It's a throat infection caused by a strep bacteria that responds rapidly to most antibiotics. There can be a number of other bacteria involved in addition to strep so a regular culture (not just a quick strep ...Read more


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Is it normal for strep throat pain to spread to neck and head. I am on cephalexin for three days but this pain has not still gone away. ?

Is it normal for strep throat pain to spread to neck and head. I am on cephalexin for three days but this pain has not still gone away. ?

Check dosage/diagnos: You may be getting suboptimal dose of cephalexin or you may have another problem, as infectious mononucleosis, a viral pharyngitis, can co-exist. Yes pharyngitis pain can spread, but usually abates with the start of treatment after one or two days, goodluck ...Read more

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7f on cephalexin nowfor 6 days 4 strep throat has a 102.5 fever w/chills tonight. Help Went to school ate well. Hit fast? Cancer ??

7f on cephalexin nowfor 6 days 4 strep throat has a 102.5 fever w/chills tonight. Help Went to school ate well. Hit fast? Cancer ??

Test confirmed ??: It would be unusual for a test confirmed strep not to improve within 48hrs unless it presented with a concurrent infection with viruses like mono (which happens). Cancer would be the last thing I would consider.I would call in & schedule a recheck before the weekend to see if a separate issue is present. ...Read more

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My 20 year old daughter has sore throat, swollen lymph nodes and UTI symptoms. Throat culture showed Strep B. Dr gave Keflex- is it necessary?

My 20 year old daughter has sore throat, swollen lymph nodes  and UTI symptoms. Throat culture showed Strep B. Dr gave Keflex- is it necessary?

It's actually: a GOOD CHOICE for an antibiotic since it will probably "cover" both infections (both gram positive and gram negative organisms) Hope this is helpful Dr Z ...Read more

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My 5 year old was given a prescription of 2 1/2 teaspoons of cephalexin 2 times a day for strep throat for 10 days. Sound right i feel this is too much. Is that correct dosage?

My 5 year old was given a prescription of 2 1/2 teaspoons of cephalexin 2 times a day for strep throat for 10 days.  Sound right i feel this is too much.  Is that correct dosage?

It : It depends on the strength of the oral suspension and the weight of your child. Cephalexin oral suspension comes in 2 strengths: 125mg/5ml or 250mg/5ml the recommended dosage for a child with strep throat is between 25-50mg/kg (2.2 lbs) twice a day for 10 days. If he is on the 125mg /5ml then he is getting about 312.5mg/dose. This is an appropriate dose for a child 12-24 lbs. If he is on the 250mg/5ml then he is getting 625mg/dose. This is an appropriate dose for a child 24lbs to 50 lbs. If you have any other questions about his medication, give his doctor a call. Good luck! ...Read more

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7f confirmed strep throat. 4 doses of cephalexin still has swollen tonsils.. Normal no fever.. What to do now?

7f confirmed strep throat.  4 doses of cephalexin still has swollen tonsils.. Normal no fever.. What to do now?

Tonsillitis: Continue with the medication as prescribed. The swelling can take much more time to resolve. Remember the tonsils are lymphoid tissue - they can take some time before getting back to their previous size. ...Read more

Pharynx (Definition)

It is the connection between the mouth and the throat. The 3 parts are the oropharynx, nasopharynx, and hypo-pharynx. The pharynx leads into the ...Read more