Provinon-25 is an post cycle steroid, this drug contains Mesterolone and is made by Platinum Biotech.
Provinon-25 is a synthetic, orally effective androgen which does not have any anabolic characteristics. Provinon-25 is used in school medicine to ease or cure disturbances caused by a deficiency of male sex hormones. Many athletes, for this reason, often use Provinon-25 at the end of a steroid treatment in order to increase the reduced testosterone production. This, however is not a good idea since Mesterolone has no effect on the body own testosterone production but as mentioned in the beginning only reduces or completely eliminates the dysfunctions caused by the testosterone deficiency. These are in particular impotence which is mostly caused by an androgen deficiency that can occur after the discontinuance of steroids, and infertility which manifests itself in a reduced sperm count and a reduced sperm quality. Provinon-25 is therefore taken during a steroid administration or after discontinuing the use of the steroids, to eliminate a possible impotency or a reduced sexual interest. This, however does not contribute to the maintenance of strength and muscle mass after the treatment.
Some competitive bodybuilders will also add Mesterolone to their pre-contest preparation as many believe that it will improve muscle density and hardness. This could be attributed to the ability of the compound to decrease water retention and reduce the amount of circulating estrogen in the body, similar to many other androgenic compounds. However, as discussed earlier, there are several other drugs that could be substituted for mesterolone that are much more effective for this prupose.
Many steroid users who have had adverse reactions to testosterone, or otherwise do not wish to use testosterone in their cycle, will often add Mesterolone to their cycles for it's ability to increase the libido of a user. Often times when a user does not include testosterone, or simply not enough testosterone in relation to the other compounds that he is using, libido will be reduced and including Mesterolone may help alleviate this. Obviously, the dihydrotestosterone effect of the compound plays a key role in this process.

This drug is also favored by many during contest preparations, when a lower estrogen/high androgen level is particularly sought after. This is especially beneficial when anabolics like Winstrol, Oxandrolone and Primobolan are being used alone, as the androgenic content of these drugs is relatively low. Provinon-25 can supplement a wellneeded androgen, and bring about an increase in the hardness and density of the muscles. Women in particular find a single 25 mg tablet will efficiently shift the androgen/estrogen ratio, and can have a great impact on the physique. Since this is such a strong androgen however, extreme caution should be taken with administration. Higher dosages clearly have the potential to cause virilization symptoms quite readily. For this reason females will rarely take more than one tablet per day, and limit the length of intake to no longer than four or five weeks. One tablet used in conjunction with 10 or 20 mg of Nolvadex can be even more efficient for muscle hardening, creating an environment where the body is much more inclined to burn off extra body fat (especially in female trouble areas like the hips and thighs).
Provinon-25 is therefore taken during a steroid administration or after discontinuing the use of the steroids, to eliminate a possible impotency or a reduced sexual interest. This, however does not contribute to the maintainance of strength and muscle mass after the treatment.
There are other better suited compounds for this like HCG and Clomid. For this reason Provinon-25 is unfortunately cunsidered by many to be a useless and unnecessary compound.
The majority of male users will find that dosing in the range of 25 to 100 milligrams per day of mesterolone will be enough to acheive their desired results. Females most often remain at about 25 milligrams per day, but many have experimented with levels far higher. Due to the active life of the compound, splitting the dosage of the drug so that it can be taken twice per day is beneficial, but the effects of the compound should remain for a full twenty four hours so it is not completely necessary.
Due to the fact that many other compounds are available that are much more potent and effective than Mesterolone for the same purposes, it is seemingly unnecessary to increase a user's dosage far higher than 100 mgs per day. Instead one would most likely be better served to switch compounds are try a much more potent drug if the desired results are not acheived.

SIDE EFFECTS:
The side effects of Provinon-25 in men are low at a dosage of 2-3 tablets/day so that Provinon-25, taken for example in combination with a steroid cycle, can be used comparatively without risk over several weeks. Since it is well-tolerated by the liver liver dysfunctions do not occur in the given dosages. For athletes who are used to acting under the motto "more is better" the intake of Provinon-25 could have a paradoxical effect. The most common side effect of Provinon-25 or in this case, secondary symptom is in part a distinct sexual over-stimulation and in some cases continuous penis erection. Since this condition can be painful and lead to possible damages, a lower dosage or discontinuing the compound are the only sensible solutions. Female athletes should use it with caution since possible androgenic side effects cannot be excluded. Women who want to give Provinon-25 a try should not take more than one 25 mg tablet per day. Higher dosages and periods of intake of more than four weeks considerably increase the risk of virilization symptoms. Female athletes who have no difficulties with this drug obtain good results with 25 mg Provinon-25/day and 20 mg Nolvadex/day and, in combination with a diet, report an accelerated fat breakdown and continuously harder muscles.
Like any drug, Provinon-25 also is associated with some rare side effects. While the side effects do not occur in all individuals, they are quite disturbing. The side effects include: painful erections, loss of libido, general fatigue, deepening of voice, hair growth, acne, oily skin.