Top
10
Doctor insights on: Allergic Penicillin Antibiotics

Share
Dr. John Leander Po
1,117 doctors shared insights

Antibiotic (Definition)

An antibiotic is a medicine that slows, stops, or kills germs. The germs are usually bacteria causing an infection in a person, so the person uses antibiotics to help his body get ...Read more


2

2
I'm allergic to penicillin. Am I also allergic to penicillin derived antibiotics?

I'm allergic to penicillin.  Am I also allergic to penicillin derived antibiotics?

Maybe: Penicillin allergy is usually secondary to either the beta-lactam components or the minor determinants. If you are found to be allergic (via skin testing) to the beta-lactam component then you are at risk for sensitization to all beta-lactam medications, including cephalosporins. Fortunately in the majority of people, this is not the case. You should consult with your local allergy specialist. ...Read more

See 1 more doctor answer
3

3
If a child is allergic to mold, could he also be allergic to penicillin-based antibiotics?

No: Good question. Being allergic to mold does not increase the risk of being allergic to penicillin based antibiotics. By extension. Penicillin allergic patients are not therefore allergic to blue cheese (which is a mold in the cheese). ...Read more

4

4
I have a skin infection and need an antibiotic but allergic to penicillin? What antibiotic is good?

I have a skin infection and need an antibiotic but allergic to penicillin? What antibiotic is good?

Depends: It would depend on the type of penicillin allergy you had and the type of skin infection. If you just had a rash from penicillin and you do not have an MRSA infection cephalosporins like Keflex would be fine. If immediate hypersensitivity to penicillin, clindamycin, Doxycycline or septra (sulfamethoxazole and trimethoprim) would be options. ...Read more

5

5
I am going for a tooth extraction tomorrow and I am allergic to penicillin and antibiotics. What should I do?I am in a lot of pain.

I am going for a tooth extraction tomorrow and I am allergic to penicillin and antibiotics. What should I do?I am in a lot of pain.

Antibiotic allergy: I am sure that there is at elast one antibiotic that you are not allergic to. Worthwhile to be evaluated by an allergist to see what you are truly allergic to. About 80% of patients who walk in claiming to be allergic to penicillin are found to be not allergic! ...Read more

See 2 more doctor answers
6

6
If I have an std, like gonorrhea or chlamydia, and happen to be allergic to penicillin, what antibiotic can I take?

If I have an std, like gonorrhea or chlamydia, and happen to be allergic to penicillin, what antibiotic can I take?

Rocephin&Zithromax/t: We do not use penicillin to treat gonorrhea due to resistance to penicillin.We use a shot of Rocephin (ceftriaxone) which is a cephalosporin, or cefexime asingle dose of 400mgm by mouth or spectomycine can be used 2gm single doseim.But specticomycine is not available in us for chlamydia we use single dose of zithromax 1gm or vibramycine for 10 days. ...Read more

8

8
I am allergic to penicillin, can other antibiotics be used to treat syphilis?

I am allergic to penicillin, can other antibiotics be used to treat syphilis?

Yes: It is known that 60-70% of those thought penicillin allergic are not, skin testing in a protected setting can usually provide more accurate status. Nontheless, the drug Doxycycline given over a 2 wk period may cure syphillis, Azithromycin has been used but some resistant strains have been found. Penicillin is the only drug known effective during pregnancy & can be used with rapid desensitization. ...Read more

See 1 more doctor answer
9

9
I am allergic to penicillin, can other antibiotics be used to treat meningitis?

I am allergic to penicillin, can other antibiotics be used to treat meningitis?

Yes: Meningitis is a very serious infection requiring close medical attention. Viral meningitis is most common is not treated with antibiotics. If one has bacterial meningitis, this is a medical emergency. If allergic to penicillin, other antibiotics can be used. In certain indications, one can be desensitized to penicillin. ...Read more

See 1 more doctor answer
10

10
I'm allergic to penicillin, will other antibiotics work against a streptococcal b infection?

Yes: There are a number of effective antibiotics that your doctor can choose. Most patients who think that they are allergic to penicillin are not. Even patients who had a reaction in the past usually lose the allergy. An allergist can test to see if you are allergic. ...Read more

See 1 more doctor answer