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How Long Can Desensitization Of An Antibiotic Be Effective?

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Posted on Wed, 14 Dec 2016
Question: I recently was treated for syphillis ,but before treatment needed to be desensitized because of my allergy to penicillin,and all the substitutions including doxycycline.(anaphlaxis) I was in the ICU for a total of two days until the Desensitization was complete and was also treated. during discharge the nurse informed me that I no longer had an allergy to penicillin and in the future would be able to take it without any reaction. I was treated on Oct 5. and had blood drawn today to see if titers have reduced, or if during a recent encounter I was reinfected.Long story short will I have to be desensitized again if another treatment of penicillin is needed.
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Answered by Dr. Panagiotis Zografakis (20 minutes later)
Brief Answer:
desensitization will have to be repeated...

Detailed Answer:
Hello,

desensitization works for as long as the antibiotic is administered. The allergy may return afterwards. So the process has to be repeated.

Kind Regards!
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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Panagiotis Zografakis

Internal Medicine Specialist

Practicing since :1999

Answered : 3809 Questions

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How Long Can Desensitization Of An Antibiotic Be Effective?

Brief Answer: desensitization will have to be repeated... Detailed Answer: Hello, desensitization works for as long as the antibiotic is administered. The allergy may return afterwards. So the process has to be repeated. Kind Regards!