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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Will Taking Penicillin Causes Pain And Weakness In The Arm?

Hello, I am taking penicillin VK 500MG Tabl and I am noticing that my right arm is very weak and it it painful to move the arm. Should I stop taking this prescription? I was prescribed this because I had a small abcess under one of my teeth. Thank you in advance.
Mon, 23 Mar 2020
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General & Family Physician,  's  Response
Hi,

Yes, although it is rare but penicillin can cause pain and muscle weakness. Based on the history you seem to have hyperkalemia (increased potassium level) apparently caused by using penicillin VK-500 tablets. I advise you to stop taking this drug and consult your dental surgeon for an alternate effective but a safer antibiotic apart from undergoing drainage of the abscess.

Hope I have answered your question. Let me know if I can assist you further.

Regards,
Dr. Mohammed Taher Ali, General & Family Physician
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Will Taking Penicillin Causes Pain And Weakness In The Arm?

Hi, Yes, although it is rare but penicillin can cause pain and muscle weakness. Based on the history you seem to have hyperkalemia (increased potassium level) apparently caused by using penicillin VK-500 tablets. I advise you to stop taking this drug and consult your dental surgeon for an alternate effective but a safer antibiotic apart from undergoing drainage of the abscess. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Mohammed Taher Ali, General & Family Physician