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Doctor insights on: Allergic Penicillin Prescribed Cefazolin Terrified Needles Pills

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Since i'm allergic to penicillin, I was prescribed cefazolin, but i'm terrified of needles. Can I take pills instead?

Since i'm allergic to penicillin, I was prescribed cefazolin, but i'm terrified of needles. Can I take pills instead?

Pen/cephalosporins : It depends . First of all, the first choice substitute antibiotic for a penicillin-allergic person is not a cephalosporin, especially a first-generation one like cephazolin. There is a small chance you will be allergic to the cephazolin, and giving it parenterally is much more dangerous than orally. The type of infection you have determines what antibiotics you can use. Ask your doctor for options. ...Read more

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Dr. Margaret Bash
131 doctors shared insights

Cefazolin (Definition)

Cefazolin is a second generation cephalosporin which is a kind of cephalosporin type drug (anti-bacterial ...Read more


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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

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If I am allergic to penicillin, erythromycin, ancef (cefazolin) can I take azithromycin?

If I am allergic to penicillin, erythromycin, ancef (cefazolin) can I take azithromycin?

Maybe but avoid: Most people do not have true allergies to medicines. Some are better described as an intolerance. Antibiotics are important in life, so i would a. Avoid the azithro, b. Get allergy testing for antibiotics from a competent allergy specialist. ...Read more

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. I had severe anaphylactic reaction to amoxicillin and cefalaxcin. Not allergic to azithromycin , cefixime ,ofloxcin n ciplofloxacin. I have fear nw?

. I had severe anaphylactic reaction to amoxicillin and cefalaxcin. Not allergic to azithromycin , cefixime ,ofloxcin n ciplofloxacin. I have fear nw?

Excercise caution: avoid medicines you are allergic to, print a card with your drug allergies, keep it in your wallet, inform every doctor/dentist you encounter of your drug allergies to write this information in your chart,,take the first dose of any new antibiotic prescribed in the doctor's office and wait for an hour, if no reraction leave,keep epinephrine handy when starting a new antibiotic,u will be safe ...Read more

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Had scary reaction to Flagyl 500 mg after taking one pill. Got prescribed Metrogel .75% but I'm scared. Used Clindamycin for GBS before. OK with BV?

Had scary reaction to Flagyl 500 mg after taking one pill. Got prescribed Metrogel .75% but I'm scared. Used Clindamycin for GBS before. OK with BV?

Yes : There are 2 accepted treatments for bacterial vaginosis and Flagyl, metronidazole, is one but clindamycin is the other and should also work for you. With the history of an allergic reaction to Flagyl, it would be considered to be the drug of choice. Hope this helps. ...Read more

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I'm allergic to Erythromycin-anaphylaxis Clindamycin- anaphylaxis Bactrim- rash Sulfa drugs- rash can I use polymyxin b sulfate eye drops?

I'm allergic to Erythromycin-anaphylaxis 
Clindamycin- anaphylaxis
Bactrim- rash
Sulfa drugs- rash can I use polymyxin b sulfate eye drops?

Yes: Polymyxin is an effective anti-bacterial. You could use it without the allergies popping up as it has with others. However: are you sure you need this drop? It seems as if you are using an antibiotic for every eye inflammation, most of which are probably not bacterial. And in so doing you have sensitized yourself to antibiotics that you might need for an actual infection. ...Read more

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Allergic to penicillin, amoxicillin, and aspirin - prescribed Clindimaycin (sp) for a tooth infection,root canal - bad reaction - what else can I use?

Allergic to penicillin, amoxicillin, and aspirin - prescribed Clindimaycin (sp) for a tooth infection,root canal - bad reaction - what else can I use?

Antibiotic allergy: The doctor whose care you are under and knows your entire medical and dental history can discuss this with you and find an appropriate antibiotic to prescribe. It's more complicated than just going down a list of next possible antibiotic to prescribe. ...Read more

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Can i take Rocephin (ceftriaxone) if i'm allergic to penicillin?

Can i take Rocephin (ceftriaxone) if i'm allergic to penicillin?

Depends.: It depends how severe your reaction is and who the prescribing practitioner is. There is about a 10% cross reactivity with cephalosporins (Rocephin (ceftriaxone)) and penicillin based drugs. Usually if the reaction is minor, I will prescribe a cephalosporin like Rocephin (ceftriaxone). However, if the reaction to the penicillin based med is severe like shortness of breath, swelling or anaphylaxis I may avoid them completely. ...Read more

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Are penicillin vk antibiotic tablets suitable for toothache?

Are penicillin vk antibiotic tablets suitable for toothache?

Possibly: You don't know if you have an infection, do you? Taking antibiotics when you don't have an infection is totally useless, and taking antibiotics if you do have a dental infection will not fix the tooth. You still need to see a dentist for care, so the sooner you call the sooner you will feel better.. ...Read more

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Iv ancef (cefazolin) safe if pregnant?

Iv ancef (cefazolin) safe if pregnant?

Yes: As long as you are not allergic to it. There is a 10% incidence of allergy if you are allergic to penicillin. ...Read more

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I am allergic to penicillin G per the blood test. Augmentin (amoxicillin and clavulanate) caused the reaction. Is Augmentin (amoxicillin and clavulanate) , penicillin "G" ? Ty

I am allergic to penicillin G per the blood test. Augmentin (amoxicillin and clavulanate) caused the reaction. Is Augmentin (amoxicillin and clavulanate) , penicillin "G" ? Ty

Similar: The amoxicillin in Augmentin (amoxicillin and clavulanate) and Penicillin share a common core structure and thus people allergic to Penicillin are almost always allergic to amoxicillin. On the other hand, not all people reacting to amoxicillin are allergic to penicillin when the reaction is a skin rash. ...Read more

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My mother is allergic to antibiotics including sulfa drugs. She got hives really bad from e-mycin. Alternative antibiotics?

My mother is allergic to antibiotics including sulfa drugs. She got hives really bad from e-mycin. Alternative antibiotics?

Talk to Doctor: There are a wide range of other antibiotics including penicillins, but the choice of antibiotic would depend on the condition/bacteria being treated. Your doctor should be able to find a suitable alternative that are not in these classes of drugs. Allergists specialize in drug reactions and can get to the bottom of what drugs your mother can tolerate and what drugs your mother should avoid. ...Read more

Dr. John Chiu Dr. Chiu
2 doctors agreed:
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I'm allergic to penicillin. Was prescribed cephalexin for folliculitis. Stop taking it 3 days ago. Now I have hives all over. Delayed reaction?

Dr. John Chiu Dr. Chiu
2 doctors agreed:

Possible: A small % of people who are allergic to penicillin may also react to cephalosporin such as cephalexin. However, if your reaction did not occur until about 10 days after you started to take the medication, this may well be a true allergic reaction specific to cephalexin. ...Read more

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I'm allergic to sulfa. Can i take ceftriaxone?

Yes: Ceftriaxone/rocephin is a cephalosporin antibiotic. It is chemically unrelated to sulfa drugs and there is no cross allergenicity. ...Read more

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Can I use Flagyl to treat strep throat? I'm allergic to penicillin, bactrum, ceftin (cefuroxime) and levaqon.

Can I use Flagyl to treat strep throat? I'm allergic to penicillin, bactrum, ceftin (cefuroxime) and levaqon.

No: Flagyl does not treat strep throat, first establish it is indeed strep throat, and see an allergist to go over your drug reactions to determine what you are indeed allergic to and what you can and cannot take. Don't self medicate! ...Read more

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