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Doctor insights on: Bactrim Ds Mrsa Dosage

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Dr. Michael Ein
587 doctors shared insights

Mrsa (Definition)

MRSA, methicillin-resistant Staphylococcus aureus, is a certain strain of bacteria that is resistant to several antibiotics. It most commonly causes skin infections and abscesses, ...Read more


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What dosage of bactrim (sulfamethoxazole and trimethoprim) for mrsa?

DS 3X/day: If you are normal size with normal renal function 1 double strength tablet (160/800 mgs) 3 times a day. ...Read more

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My doctor prescribed me bactrim (sulfamethoxazole and trimethoprim) ds for mrsa. The directions are 2 twice a day. Is that a normal dose?

My doctor prescribed me bactrim (sulfamethoxazole and trimethoprim) ds for mrsa. The directions are 2 twice a day. Is that a normal dose?

Yes, it can be: For MRSA (methicillin resistant staph aureus) infections, 2 ds (double strength) tabs 2x per day are often an appropriate dose. This dose is used in adults and is typically based on weight and size of the patient. Mrsa is not an infection to take lightly and properly treating this is very important. ...Read more

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What is the dose of bactrim (sulfamethoxazole and trimethoprim) for mrsa?

Bactrim (sulfamethoxazole and trimethoprim) For MRSA: If the strain of MRSA is sensitive to bactrim, (sulfamethoxazole and trimethoprim) the normal dose in a patient with normal kidney function would be one Bactrim (sulfamethoxazole and trimethoprim) ds tablet every 12 hours. ...Read more

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I was just diagnosed with ca-mrsa and i'm scared since it is often resistant to drugs. I just started bactrim ds tonight. What are the chances of it not responding to any drug? How can you know if it's caught early enough? Thank you!

Partially resistant: Ca MRSA is not particularly worse than having regular staph infection. It is not related to the flesh eating bacteria scare. The choice of antibiotics is limited, but generally the infection is sensitive to at least a few of the mainstream antibiotics of which Bactrim (sulfamethoxazole and trimethoprim) is one. If your doctor thought you were at great risk you would not be at home. ...Read more

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I was told I had MRSA and put on bactrim ds for 10 days, twice a day. After wanting to confirm dx, the dermo did a culture and it showed nothiing! dermo thinks its just back acne. He told me to finish bactrim then he will start me on doxycycline. Is that

I was told I had MRSA and put on bactrim ds for 10 days, twice a day. After wanting to confirm dx, the dermo did a culture and it showed nothiing! dermo thinks its just back acne. He told me to finish bactrim then he will  start me on doxycycline. Is that

Sounds good: Mrsa is a scary bug but there a great many different strains and many folks harbor them on their skin with no harm. A physician seeing someone with one or more pimples may feel obligated to biopsy for MRSA and treat it as such since it's by far more serious even if it's not really present. It sounds like your dermatologist made the right move. ...Read more

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Is bactrim (sulfamethoxazole and trimethoprim) good for mrsa?

MRSA: Generally local skin lesions can be easily treated with Bactrim (sulfamethoxazole and trimethoprim) or septra if you are not allergic to sulfa drugs. ...Read more

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Culture of leg taken AFTER doc already treated it for MRSA w/Bactrim & top antib; test then back neg (false neg?). Antib in sys how lg? Retest when?

Culture of leg taken AFTER doc already treated it for MRSA w/Bactrim & top antib; test then back neg (false neg?). Antib in sys how lg? Retest when?

Test of cure: Cultures are often taken following treatment of an infection to confirm that they were cured with the chosen antibiotic. Persistent symptoms after treatment with a negative bacterial culture is suggestive of another type of infection, such as fungal or viral. ...Read more

Bactrim (Definition)

Trimethoprim and sulfamethoxazole, cotrimoxazole is a combination antibiotic that is used to treat a ...Read more