Regarding oral medications for syphilis?
Hello Dr.
Lee, last week I was diagnosed with syphilis at Kaohsiung Medical University Chung-Ho Memorial Hospital.
The doctor mentioned that I needed to receive Benzathine Penicillin, but it was unavailable, so they prescribed Azithromycin (Zithromax).
I’m not sure if it’s because I was referred to dermatology, but the doctor was unsure about the dosage, so they prescribed six tablets for me to take over three days, two tablets each morning.
I found some information online stating that the typical dosage is around 2000 mg, which is about eight tablets at once.
Am I taking too little, which could lead to antibiotic resistance? Should I consider switching to urology or another specialty?
Yu, 20~29 year old female. Ask Date: 2015/09/27
Dr. Li Yilun reply Urology
According to a study published in the New England Journal of Medicine in 2005, the suggested alternative therapy is a single dose of 2g.
However, the usage of alternative therapies is still inconclusive.
Currently, it is recommended that if azithromycin is used to treat syphilis, the dosage suggested in this article is more evidence-based.
Reply Date: 2015/09/27
More Info
When it comes to the treatment of syphilis, Azithromycin is not the first-line treatment. The standard treatment for syphilis, particularly in its early stages, is Benzathine penicillin G. However, in cases where penicillin is not available or the patient has a penicillin allergy, alternative treatments may be considered, including Azithromycin.
Azithromycin is a macrolide antibiotic that can be used to treat various bacterial infections, including some sexually transmitted infections. The typical dosage for treating syphilis with Azithromycin is indeed higher than what you have been prescribed. The recommended regimen for Azithromycin in treating syphilis is usually a single dose of 2 grams (2000 mg) taken orally. This is often given as a single dose rather than spread out over several days.
Your current prescription of six tablets to be taken over three days (two tablets each morning) may not provide the adequate dosage needed to effectively treat syphilis. Each Azithromycin tablet typically contains 250 mg, so taking two tablets a day would only amount to 500 mg daily, totaling 1500 mg over three days. This is below the recommended single dose of 2000 mg, which raises concerns about the effectiveness of the treatment and the potential for developing antibiotic resistance.
Antibiotic resistance can occur when bacteria are exposed to suboptimal doses of antibiotics, allowing them to survive and adapt. In the case of syphilis, if the bacteria are not completely eradicated due to insufficient dosing, there is a risk that the infection could persist or recur, and the bacteria could develop resistance to the antibiotic used.
Given these concerns, it would be prudent to follow up with your healthcare provider. You may want to consider discussing your treatment plan with a specialist in infectious diseases or a urologist, as they may have more experience with sexually transmitted infections and can provide you with the most appropriate treatment options.
When you speak with your doctor, you can express your concerns about the dosage and ask if it would be possible to switch to a more standard treatment regimen, such as the recommended single dose of 2000 mg of Azithromycin or, ideally, to Benzathine penicillin G if it becomes available.
In summary, while Azithromycin can be used to treat syphilis, the dosage you have been prescribed appears to be insufficient. It is essential to communicate your concerns with your healthcare provider to ensure you receive the most effective treatment for your condition.
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