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Doctor insights on: Allergic Penicillin Take

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What happens when an allergic person takes penicillin?

What happens when an allergic person takes penicillin?

Varies: Some reactions are mild, such as hives alone. Others are more serious, with breathing problems and blood pressure drop. Some reactions (like some kinds of rashes) are not actually allergies, but different reactions that may or may not recur when you take the medicine. While it may be easier to just avoid penicillin, if it's important, you can find out if you have a "true" allergy by testing. ...Read more

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Is it a bad idea for someone allergic to penicillin safely take keflex, a cephalosporin?

Yes: Cephalexin (keflex) is a first generation cephalosporin and a very close cousin to penicillin. Though it is not 100% true that all penicillin allergic individuals are also allergic to cephalexin, there is a high likelihood of that happening. ...Read more

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If I am allergic to penicillin, can I take tazocin?

If I am allergic to penicillin, can I take tazocin?

Piperacillin/tazobac: This compound contains a penicillin derivative and if you have a documented allergy to penicillin you should never ever take this drug. ...Read more

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Can you tell me what you suggest if I'm allergic to penicillin, can I take mdma?

Can you tell me what you suggest if I'm allergic to penicillin, can I take mdma?

You shouldn't: But it has nothing to do with penicillin allergy. The two drugs are totally unrelated, but mdma is a dangerous drug in kids, even more so in a 39 year old, who should of given up that kind of nonsense long ago. Many mdma pills are not pure, and may contain other related chemicals, some of which are even more dangerous than the ecstacy itself. Molly, a particular brand of mdma has caused deaths. ...Read more

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Allergic to penicillin can I take keflex?

Likely, not certain: The majority of people who are told they are allergic to penicillin are not actually so (they get rashes for other reasons, e.g.). Of those that are allergic, about 70% or more will lose the allergy after about 10 years. If you are still allergic, there is about a 10% chance of cross-reaction to 1st-gen cephalosporins like keflex. An allergist can perform testing to judge your risk for a reaction. ...Read more

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I'm allergic to penicillin, can I take keflex?

I'm allergic to penicillin, can I take keflex?

Maybe: Penicillins (like amoxil) & cephalosporins (like keflex) are both beta-lactam antibiotics named because of their ringed chemical structure. Allergy to penicillins is sometimes directed against this ring, and an allergic reaction may also occur if a similar antibiotic is taken. It is estimated that about 10% of penicillin-allergic patients are also allergic to cephalosporins like keflex. ...Read more

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If your allergic to penicillin, can you take keflin?

If your allergic to penicillin, can you take keflin?

It depends: It depends on the type of penicillin allergy. If it's just a rash you can safely take cephalosporins like keflin. If hives, throat swelling or anaphylaxis you cannot take cephalosporins. In this situation you usually need to take an antibiotic that is unrelated to penicillins (not a betalactam drug). ...Read more

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What happens if I'm allergic to penicillin can I take biaxin (clarithromycin)?

What happens if I'm allergic to penicillin can I take biaxin (clarithromycin)?

No worries: These medications are not related and should not be a concern for a reaction in someone who is allergic to penicillin. ...Read more

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I'm supposed to be allergic to penicillin but I take amoxicillin with no problems. Does this mean I'm not allergic anymore?

I'm supposed to be allergic to penicillin but I take amoxicillin with no problems. Does this mean I'm not allergic anymore?

Yes: Or never really were allergic. Many people get labelled as allergic who were never truly reacting to the drug in question. If you are taking Amoxicillin without a reaction you are not allergic to penicillin. ...Read more

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If I'm allergic to penicillin can I take ceftin (cefuroxime)?

If I'm allergic to penicillin can I take ceftin (cefuroxime)?

Probably: There's about a 15% chance that you'll be allergic to ceftin (cefuroxime). If your penicillin allergy was life-threatening, you shouldn't take the risk, but if you just developed a rash, it's fine to try the ceftin (cefuroxime). ...Read more

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If my wife is allergic to penicillin and I take something that has penicillin in it, can we have sex?

If my wife is allergic to penicillin and I take something that has penicillin in it, can we have sex?

Generally: But there will be some penicillin in your semen. If she has had a life-threatening reaction to penicillin, you should abstain; if she had a milder reaction, she should be prepared to experience some vaginal itching after intercourse (assuming, by the fact that you asked the question, that you don't use condoms - if you do, there's no problem). ...Read more

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Need expert help. Can someone allergic to penicillin or sulfa take cipro (ciprofloxacin)?

Need expert help. Can someone allergic to penicillin or sulfa take cipro (ciprofloxacin)?

I would not expect: To see cross-sensitivity between ciprofloxacin (a flouroquinolone) and either a penicillin or a sulfa drug. All 3 are chemically different. While a person could be allergic to all three, it would typically be considered three different allergies, not a single allergy related to all three medications. ...Read more

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What to do if I have strept throat, and im allergic to penicillin, can take amoxicillin or keflex instead?

What to do if I have strept throat, and im allergic to penicillin, can take amoxicillin or keflex instead?

No: Amoxicillin is within penicillin class and the risk of having a reaction is significant so it should be avoided. There is controversy about the risk of cross reaction between class of antibiotics penicillin and cephalosporin (keflex). It appears the risk is low (but not 0). If penicillin allergy was years ago, skin testing for penicillin can help know if it is still there. Allergist can help. ...Read more

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What to do if I have strept throat, and I'm allergic to penicillin, can take amoxicillin or keflex instead?

What to do if I have strept throat, and I'm allergic to penicillin, can take amoxicillin or keflex instead?

No to Amoxicillin: You shouldn't take Amoxicillin and there is a 1 in 10 chance that you'll have a reaction to Keflex. If your allergic reaction to penicillin wasn't severe, (anaphylaxis or other), then it would be reasonable to try Keflex ...Read more

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What meds can I take if I'm allergic to penicillin?

What meds can I take if I'm allergic to penicillin?

Many: You need to avoid penicillin and amoxicillin plus a few related drugs but other antibiotics can usually be tolerated. Cephalosporin cross-sensitivity is possible (as much as 10%) but I have rarely seen one in my practice. The cross-sensitivity in the newer generations of cephalosporin is even rarer. ...Read more

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What meds can I take if I'm allergic to penicillin?

What meds can I take if I'm allergic to penicillin?

Anything not PCN ok.: Actually the incidence of a true IgE mediated reaction to Penicillin is less than 1% of the population at large. Thankfully there are many alternatives to penicillin for treating susceptible organisms. The big question that occurs almost always is can a penicillin allergic pt be given a cephalosporin. The true incidence of real crossover sensitivity to "cephalo's" is anywhere from 0.5% to 10% ...Read more

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I'm allergic to NSAIDs and I'm wondering if its ok to take penicillin?

I'm allergic to NSAIDs and I'm wondering if its ok to take penicillin?

Not related: And no way to know if you are truly allergic to penicillin except by getting professionally tested by an allergist or having a reaction after taking the medicine in any form and establishing a temporal relationship, if there's no alternative to penicillin, and you have a history of? penicillin allergy, ask your doctor to consult an allergist, otherwise ask your doctor to prescribe an alternative ...Read more

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Is it possible for you to take cephalexin if you r allergic to penicillins?

Yes: Cross reactivity between the two classes are low so Cephalexin is not contraindicated in penicillin allergy patients. You should have your prescribing physician to follow you for any signs of reactions and get proper treatment. ...Read more

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Can you take acidophilus if your allergic to penicillin?

Can you take acidophilus if your allergic to penicillin?

Yes: Acidophilus and penicillin have a low chance of interaction. Acidophilus itself should not contain any cross-reactive allergens similar to penicillin. ...Read more

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What maleria tablets can I take if im allergic to penicillin?

What maleria tablets can I take if im allergic to penicillin?

Malaria tablets: Potentially any. There isn't an association between penicillin allergy and allergy to any malaria medication, whether it is for prevention or treatment. The two antibiotics used for malaria are tetracycline and sulfonamides, but these are not related to penicillin and do not have cross-sensitivity to it. ...Read more

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What else can I take if I am allergic to penicillin & e-mycin?

What else can I take if I am allergic to penicillin & e-mycin?

See below: Depends what you are treating Cleocin is good for skin infections
avelox for respiratory Cipro (ciprofloxacin) for urine tract infections. ...Read more

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If allergic to Ceclor can I take penicillin?

If allergic to Ceclor can I take penicillin?

Probably, but..: It would be safer to get testing to penicillin before taking ceclor. On the other hand, if the reaction was that of joint ache, fatigue, fever etc from ceclor, it would be highly unlikely for you to react to penicillin. ...Read more

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Can u take cefuroxime if allergic to penicillin?

Can u take cefuroxime if allergic to penicillin?

Yes: I have been using Ceftin (cefuroxime axetil) in penicillin allergic patients for years without any problem. You can safely take
ceftin. Other antibiotics that can be used are the fluoroquinolones such as Ciprofloxacin or levaquin (levofloxacin). The latter is more expensive but has a very low rate of bacterial resistance. ...Read more

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Is cefixime safe to take if you're allergic to penicillin?

Is cefixime safe to take if you're allergic to penicillin?

Likely: The likelihood of having an allergic reaction to cefixime is under 10%. If you have had an anaphylactic reaction to penicillin, then I would recommend that you consult an allergist but even this recommendation will be debated among allergists. ...Read more

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Can you take cephalosporin if you are allergic to penicillin?

Can you take cephalosporin if you are allergic to penicillin?

Pcn & Cehalosporins: The conventional number is 10% of penicillin allergic people are also allergic to cephalosporins, however the data is weak since the patient reported incidence of penicillin allergy may only be 10% accurate. There are also 3 generations of cephalosporins and the "cross reactivity" may vary between them. There does seem to be a direct relationship between reaction severity and cross reactivity. ...Read more

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