Doctor insights on:
Allergic Penicillin Take
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 moreSee 1 more doctor answer
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
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
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 moreSee 1 more doctor answer
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
I'm supposed to be allergic to penicillin but i take amoxicillin with no problems. Does this mean i'm not allergic anymore?
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 moreSee 2 more doctor answers
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
Yes you can...: Better with food in stomach....Get a more detailed answer ›
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
What to do if I have strept throat, and I'm allergic to penicillin, can take amoxicillin or keflex instead?
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 moreSee 1 more doctor answer
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
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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