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No, Keflex (cephalexin) is an antibiotic in the Cephalosporin category. It has no "sulfa" group and is not considered as a sulfonamide antibiotic. You can use it if you're allergic to sulfas.

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10y ago
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12y ago

No. Although the molecule contaiins the element sulfur, the sulfur is not in the form of a "sulfonamide" group, which is what identifies sulfa drugs.

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13y ago

Yes

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11y ago

No

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Q: Is cephalexin sulfa based
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Related questions

Can you take zicam and cephalexin and sulfamethoxazole together?

Cephalexin and sulfamethoxazole can not be taken together, irrespective of zicam. Cephalexin is bacteriocidal and all sulfa drugs including sulfamethoxazole are bacteriostatic.


Does alprazolam or xanax contain sulfa or are they sulfa based?

No. Above mentioned drugs do not contains sulfa drugs. They are not sulfa based also.


Will sulfa help cat virus?

Sulfa based rugs are effective in treating bacterial infections. Sulfa has no effect on viruses.


Sulfa drug Is Keflex a Sulfa Drug?

No. Cephalexin (trade name Keflex) is a 1st generation cephalosporin, an antibiotic related to penicillin. It is not a sulfa drug or derivative.


Could sulfa allergies cause blood in urine?

It did with me - although I was 2 at the time. I believe it was a sulfa based antibiotic that did it.


Is Claritin a sulfa based drug?

it contains a sulfa atom, but it is not a sulfonamide, in other words, no, it will not have sulfonamide cross reaction. no allergy.


Is Clarithromycin a sulfa drug?

For anyone who is has a sulfa allergy, it is important to know which prescription or non-prescription medications are sulfa-based. If you are suffering from any type of bacterial infection, be sure to tell your doctor about your allergy. The reason is that one of the popular options, the Zithromax z-pak, is sulfa-based and may cause a severe allergic reaction.


Can you take augmentin if allergic to sulfa drugs?

Yes. Cephalexin has no sulfa derivatives. Rather, it more closely resembles the penicillin/amoxicillin antibiotics. If you have an alergy to those, however, you may have some unpleasant side effects/reactions. Don't be afraid to call your doctor or pharmacist to ask questions before taking any medication.


Does Sulfa contain Penicillin?

Penicillin is not a sulfa drug.


Does Triamcinolone have sulfa in it?

No. Triamcinolone does not have sulfa in it.


Does Adderall XR have sulfa in it?

Nope! I take it and am allergic to Sulfa. ---- No, Adderal does not contain any sulfa moieties.


Does crestor contain sulfa?

No. Lipitor does not contain sulfa.