I haven't heard of metronidazole being used before for chronic prostatitis. :/ I recommend everyone read this; Penetration of antibiotics into the prostate
https://home.swipnet.se/isop/Penetration.pdf
Withdrawing from treatment before all the infection has gone probably happens a lot as well. 12 weeks is a guideline, it could take 4 months or 6 months. As you see below, L arginine helps speed up healing. This is just another good reason why you should take it while you're treating prostatitis
I came on here to post this:
https://en.wikipedia.org/wiki/Arginine
Arginine plays an important role in cell division, the healing of wounds, removing ammonia from the body, immune function, and the release of hormones.
[2][7][8] Arginine taken in combination with
proanthocyanidins[9] or
yohimbine,
[10] has also been used as a treatment for
erectile dysfunction.
The benefits and functions attributed to oral supplementation of L-arginine include:
Men here with erection problems should read this below:
Treatment of erectile dysfunction with pycnogenol and L-arginine.
Stanislavov R,
Nikolova V.
Abstract
Penile erection requires the relaxation of the cavernous smooth muscle, which is triggered by nitric oxide (NO). We investigated the possibility of overcoming erectile dysfunction (ED) by increasing the amounts of endogenous NO. For this purpose, we orally administered Pycnogenol, because it is known to increase production of NO by nitric oxide syntase together with L-arginine as substrate for this enzyme. The study included 40 men, aged 25-45 years, without confirmed organic erectile dysfunction. Throughout the 3-month trial period, patients received 3 ampoules Sargenor a day, a drinkable solution of the dipeptide arginyl aspartate (equivalent to 1.7 g L-arginine per day). During the second month, patients were additionally supplemented with 40 mg Pycnogenol two times per day; during the third month, the daily dosage was increased to three 40-mg Pycnogenol tablets. We obtained a sexual function questionnaire and a sexual activity diary from each patient. After 1 month of treatment with L-arginine, a statistically nonsignificant number of 2 patients (5%) experienced a normal erection. Treatment with a combination of L-arginine and Pycnogenol for the following month increased the number of men with restored sexual ability to 80%. Finally, after the third month of treatment, 92.5% of the men experienced a normal erection. We conclude that oral administration of L-arginine in combination with Pycnogenol causes a significant improvement in sexual function in men with ED without any side effects.
Other supplements or drinks ike green tea / white tea, quercetin, resveratrol, blueberry, among others, could probably replace that very expensive Pycnogenol supplement.