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Doctor insights on: Cephalexin 500mg For Sinus Infection

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Can you use cephalexin for a sinus infection?

Can you use cephalexin for a sinus infection?

Yes: But 1- many cases resolve without antimicrobials 2- other antimicrobials such as Amoxicillin / clavulanate may have better activity. ...Read more

Dr. Mark Pack
3 doctors shared insights

Sinus (Definition)

In anatomy, a sinus is a cavity within a bone or other tissue. Most commonly found in the bones of the face and connecting with the nasal cavities. Sinus (anatomy), description of the general term paranasal sinuses, air cavities in the cranial bones, especially those near the nose, including: the maxillary sinuses, also called the maxillary antra and the largest of the ...Read more


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Is it possible for you to take cephalexin for a sinus. Infection?

Is it possible for you to take cephalexin for a sinus. Infection?

Yes: Cephalexin will cover some of the bacteria that might cause sinus infection. It is freqently used for tonsillitis and skin infections. I don't generally use it for sinus infection. ...Read more

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I have 10 days worth of cephalexin 500 mg left from my husbands skin infection.Can I take this for a sinus infection?i am allergic to morphine

No: I applaud your efforts to save money / avoid waste and am glad that you asked first. While Cephalexin may work for some of the bacteria that cause sinus infections it is not the drug of choice so by taking it you would run the risk of side effects for naught. Allergy to morphine is not a concern in this context. ...Read more

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Does keflex clear sinus infection?

Does keflex clear sinus infection?

Cephalexin: Not best choice for sinusitis, but it is is acute, the causative organism sensitive to first generation cephalosporins, and you absorb it adequately it may work well. Under the best of circumstances Cephalexin (keflex) yields low serum concentrations and entry into the sinuses in therapeutic concentrations may be problematic. Amoxicillin, trimethoprim-sulfa might also be effective. ...Read more

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I'm taking Keflex 500 mg twice a day for 10 days to treat a sinus infection. Will this help and is this enough?

I'm taking Keflex 500 mg twice a day for 10 days to treat a sinus infection. Will this help and is this enough?

It could be.: It might. I use a higher dose, but some docs don't. If you have seen no improvement at all (even just a decrease in color of mucus) after 5 days, call MD and discuss. Keflex can help many causes of sinusitis, but not all. ...Read more

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Can i take biaxin (clarithromycin) and simvastatin together or keflex and simvastatin, I have a sinus infection?

Can i take biaxin (clarithromycin) and simvastatin together or keflex and simvastatin, I have a sinus infection?

Keflex: Keflex is much safer - it has no interaction with simvastatin. Biaxin (clarithromycin) is contraindicated. If you take biaxin, (clarithromycin) you must temporarily stop simvastatin. ...Read more

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Been taking keflex 500mg 4 times daily for sinus infection. Have no symptoms other than low grade fever. How or when will i know if its going to work?

Been taking keflex 500mg 4 times daily for sinus infection. Have no symptoms other than low grade fever. How or when will i know if its going to work?

See below: Sinusitis is characterized by nasal congestion, purulent nasal discharge, headache and facial pain over the sinuses in the frontal and maxillary areas. Low grade fever alone would not indicate sinusitis. Sinusitis is usually self limited and does not require antibiotics unless severe or prolonged. Keflex is not the best drug for sinusitis. Ceftin, (cefuroxime) vantin or Augmentin would be better choices. ...Read more

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Is keflex good for sinus infection and upper respiratory infection?

Only: If it is a bacterial infection. Most upper respiratory infections however, are viral and many people mistake a viral rhinnitis for sinusitis and take unnecessary antibiotics. Sounds like you may be considering taking left over keflex. Would recommend against that. Rather consult your doctor. ...Read more

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Whats the best med 2 take for a poss sinus infection whnevr i cough feels like my head is gonna explode have a lot of pressure? Started keflex today

Whats the best med 2 take for a poss sinus infection whnevr i cough feels like my head is gonna explode have a lot of pressure? Started keflex today

Sinusitis : The best way to manage the s/sx of sinusitis like the cough that your suffering, could be control with antihistamine, nasal spray, and the addition of antibiotics should be at your physician discretion. Most of the other components could be easily accessible in any local pharmacy. Hope you feel better. ...Read more

Dr. Katharine Cox
9 doctors shared insights

Infection (Definition)

Infections are invasions of some other organism (fungus, bacteria, parasite) or viruses into places where they do not belong. For instance, we have normal gut bacteria that live within us without causing problems; however, when those penetrate the bowel wall and enter the bloodstream, ...Read more


Dr. James Chapman
275 doctors shared insights

Keftabs (Definition)

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