Doctor insights on:
If My Mom Has Allergic Reactions To Penicillin Is There A Chance I Could Be Allergic Too
Possible: While specific allergies do not run in families, a tendency to allergies can. Since your mom has allergies, there is an increased chance that you may develop allergic reactions as well. Allergies typically develop following repeated exposures to something. ...Read moreSee 1 more doctor answer
My mom is breast feeding her new born but has a dry cough what can she take? She is allergic to penicillin.
Penicillin allergy: Up to 1/10 people are reported to have Penicillin allergy. Unfortunately it is often over diagnosed, often because of a rash from a viral illness. This underlies the importance of using antibiotics wisely. There is a family history but not enough to avoid the medication. Testing can be done to assess penicillin allergy and there is treatment to help. Chances are you have received Penicillin? ...Read moreSee 1 more doctor answer
I started taking cephalexin. As I have had mild allergic reaction to penicillin , should I expect serious allergic reactions to this medicatiion?
Mostly not: The incidence of cephalexin allergy in patients with penicillin allergy is in the single digit % and likely not much different from patient without a history of penicillin allergy. However if you had a severe anaphylactic reaction to penicillin, I would suggest an allergy consult just to be safe . ...Read more
If both parents are allergic to penicillin/amoxicillin and my two children are what are the chances that I am as well? I’ve taken amoxicillin before
You are not/yet: Allergy to meds is not inherited & much of what people assume is allergic reactions are not based on testing. Since you have taken amoxicillin in the past without problems you are not allergic. That does not mean you will not become allergic at some point in the future, but that would be possible at the same rate as any other person. ...Read more
Yes/unrelated: People that are allergic to penicillin can be allergic to "fruit mold" but they are completely different reactions and are unrelated. The "fruit mold" that you are mentioning is probably pennicilium - the mold that actually makes penicillin. However, allergic reactions to those are separate and unrelated. ...Read more
Was recently dx'd with lupus & am allergic to Keflex. Heard that lupus patients tend to have strong reactions to penicillin, should I avoid penicilin?
I was allergic to penicillin as a baby. Now I am 34. Is it likely that if I take amoxicillin I could have a reaction?
Yes: Amoxicillin is a form of penicillin and does carry the risk of an allergic (immediate hypersensitivity )reaction if that is indeed what you had. Unfortunately the actual symptoms of drug reactions are typically poorly documented. The good news : Penicillin allergy tends to fade with time so there is an excellent chance that you are no longer allergic. A penicillin skin test can determine this ...Read more
I am allergic to penicillin. My husband is taking this. I have broken out in hives. Could his meds be transferred via contact?
Antimicrobial agent: No one really knows why people become allergic to this drug or any other for that matter. It attaches to a protein molecule as a hapten and the immune system confuses this resultant molecule with an invader and mounts an errant response typically reserved for parasites. Fortunately penicillin allergy may fade with time and can be demonstrated with a skin test. ...Read more
Nothing serious: Penicillin currently in use as an antibiotic is synthetic and not related to the mold spores found on bread. The bread mold may not taste so good, but should not induce an allergic reaction if penicillin allergic. An allergist can test for penicillin drug allergy as 75% of people will lose this allergy after 15 years of avoidance. ...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
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