Mesterolone is generally well

liked nonetheless as it delivers very few side-effects in men. In high doses it can cause some virilization symptoms in women. But because of the high level of deactivation and pre-destination in the system (albumin, SHBG, 3bHSD, aromatase) quite a lot of it, if not all simply never reaches the androgen receptor where it would cause anabolic effects, but also side-effects. So its relatively safe. Doses between 25 and 250 mg per day are used with no adverse effects. 50 mg per day is usually sufficient to be effective in each of the four cases we mentioned up above, so going higher really isn't necessary. Unlike what some suggest or believe,
its not advised that Proviron be used when not used in conjunction with another steroid, as it too is quite suppressive of natural testosterone, leading to all sorts of future complications upon discontinuation. Ranging from loss of libido or erectile dysfunction all the way up to infertility. One would not be aware of such dangers because Proviron fulfills most of the functions of normal levels of testosterone.

Competitive bodybuilders and many others are continually on a quest for leanness. Used by the hardcore since Dan Duchaine's reporting of it a couple years ago, DNP (2,4-Dinitrophenol) has managed to steadily gain popularity

as a powerful tool for weight loss. Interestingly, DNP was first used to ignite TNT in the early 1900’s. In 1931 a study released by Stanford University declared that DNP was able to cause amazing weight loss; subsequently it found its way into many diet potions and medications; regulation was much less strict during this time than the present, and many of these products were available over the counter. Two years later DNP was banned by the FDA as a dieting agent due to its inclusion in many OTC dietary supplements. The FDA was a new organization at this time and acted in a rather brazen manner, with the absence of any set procedures
for taking substances off the market. Granted, there was only a 1% incidence of cataracts over a large population (around 100,000); nonetheless it happened (although interestingly, exclusively women). However, there are now ways to counter this which will be covered thoroughly.

In the medical arsenal of bodybuilders Triacana has had a firm place since the late 1970's. After all, its lipolytic (fatburning) effect is sufficiently known. This is due to the hypermetabolic state, increased irritability, and especially higher body temperature (generation of heat) during tshe intake of Triacana. These are factors, which help the competing

bodybuilder break down fat more easily. By a caloric intake which is higher than usual it is still possible to obtain a lower body fat content together with good muscle hardness. Although Triacana enjoys the reputation among athletes as a strong and especially effective fatburning thyroid hormone preparation, this preparation is a rather mild, well tolerated and relatively harmless compound. The often-made comparison with the two L-T3 thyroid gland hormone compounds, Cytomel and Thybon, is a poor comparison since Triacana, mi-crogram for microgram, has a considerably lower effect. Even the more moderate L-T4 thyroid hormone drugs such as

Synthroid or L-thyroxine are stronger than the substance tiratricol.

In bodybuilding Halotestin is almost exclusively taken during preparation for a competition. Since its substance is strongly androgenic while at the same time aromatizing very poorly, this substance helps the athlete obtain an elevated androgen level while keeping the estrogen concentration low.

The above information is intended to supplement, not substitute for, the expertise and judgment of your physician, or other healthcare professional. It should not be construed to indicate that use of Clomid is safe, appropriate, or effective for you. Consult your

healthcare professional before using Clomid.

Average Dosage: Men - 20-40mg daily Women - none

Arimidex is quite expensive, costing approximately $9 per milligram. With moderate doses of testosterone 0.5 mg/day is usually sufficient and in some cases may be too much.

Hearing all of these wonderful things probably has you wondering what the side effects and risks are. They are quite formidable and contribute to making DNP one of the most intolerable (though effective) drugs used in bodybuilding. Starting with the most significant, and descending in importance, are the following risks and side effects of DNP use.

The active substance is tadalafil. Each tablets of Cialis ® contains 20mg of tadalafil. The other ingredients are:

5mg tablets are yellow hexagon shaped tablets.

Phentermine Directions

Anadrol (Oxydrol) is also a very potent androgen. This factor tends to produce many pronounced, unwanted androgenic side effects. Oily skin, acne and body/facial hair growth can be seen very quickly with this drug. Many individuals respond with severe acne, often requiring medication to keep it under control. Some of these individuals find that Accutaine works well, which is a strong prescription drug that acts on the

sebaceous glands to reduce the release of oils. Those with a predisposition for male pattern baldness may want to stay away from Anadrol 50 completely, as this is certainly a possible side effect during therapy. And while some very adventurous female athletes do experiment with this compound, it is much too androgenic to recommend. Irreversible virilization symptoms can be the result and may occur very quickly, possibly before you have a chance to take action.

Lastly Proviron is used during a cycle of certain hormones such as nandrolone, with a distinct lack of androgenic nature, or perhaps 5-alpha reduced hormones that don't have

the same affinities as DHT does. Such compounds, thinking of trenbolone, nandrolone and such in particular, have been known to decrease libido. Limiting the athlete to perform sexually being the logical result. DHT plays a key role in this process and is therefore administered in conjunction with such steroids to ease or relieve this annoying side-effect. Proviron is also commonly prescribed by doctors to people with low levels of testosterone, or patients with chronic impotence. Its not perceived as a powerful anabolic, but it gets the job done equally well if not better than other anabolic steroids making it a favorite in medical practices
due to its lower chance of abuse.

DNP accomplishes the astounding boost in metabolic rate via inhibition of the F0F1 ATP synthase molecule, located in the inner wall of each mitochondrion. While the electron transport chain still functions to pump hydrogen ions into the intermembrane space, the coupling of the proton gradient to ATP production is rendered impossible by DNP. As a result, ATP production is dramatically reduced, and the energy is instead thrown off as heat. This results in an astounding production of heat; when using dinitrophenol, the athlete will radiate so much heat that it is uncomfortable to be within any proximity

of them. Luckily, this heat does not fully contribute to body temperature increases, and is instead thrown off from the entire body surface, particularly the head. As a result, adequate doses of DNP will usually only elevate body temperature by about 1-1.5?C. This is a good thing for your central nervous system and other delicate tissues; if the heat produced by ATP contributed in a more direct matter to body temperature, effective doses for fat loss would cause supraphysiological body temperature increases on a level unwitnessed at this time. Nonetheless, overheating is a very real danger; this and other side effects shall now be

addressed.

Stronger bones

Foods with an moderate G.I. include some brands of muesli, some varieties of rice, white or brown bread, honey and some cereals.

For these reasons, an athlete who needs to maintain a high level of activity and performance on consecutive days or more extended periods of time should eat large amounts of high G.I. foods. However, a reasonable quantity of low G.I. carbohydrate food should be consumed before an event in order to improve endurance.

Dianabol is an oral steroid with a great affect on the protein. The affect of dianabol promotes the protein synthesis, thus it supports the

build up of muscle. This affect manifests itself in a positive nitrogen balance. Dianabol premotes calcium deposits in the bones and has a strengthening affect on the entire organism.

Although dianabol has many potential side effects, they are rare with a dosage of up to 20 mg./day. Danabol / Dianabol causes a considerable strain on the liver. In high dosages and over a longer period of time, Danabol / Dianabol is liver-toxic. Even a dosage of only 10 mg./day can increase the liver values, after discontinuation of dianabol, however, the values return to normal.

As with no other doping drug, growth hormones are still surrounded

by an aura of mystery. Some call it a wonder drug which causes gigantic strength and muscle gains in the shortest time. Others consider it completely useless in improving sports performance and argue that it only promotes the growth process in children with an early stunting of growth. Some are of the opinion that growth hormones in adults cause severe bone deformities in the form of overgrowth of the lowerjaw and extremities. And, generally speaking, which growth hormones should one take the human form, the synthetically manufactured version, recombined or genetically produced form and in which dosage? All this controversy about

growth hormones is so complex that the reader must have some basic information in order to understand them.

Anavar / Oxandrolone / Oxandrin

Rare:

For females only:

These include:

**** = For the purpose of appetite suppression (may not be needed)

Anadrol 50 is the U.S. brand name for oxymetholone, a very potent oral androgen. This compound was first made available in 1960, by the international drug firm Syntex. Since oxymetholone is quite reliable in its ability to increase red blood cell production (and effect admittedly characteristic of nearly all anabolic/androgenic steroids), it showed

particular promise in treating cases of severe anemia. For this purpose it turned out to be well suited, and was popular for quite some time. But recent years have brought fourth a number of new treatments, most notably the non-steroidal hormone Epogen (erythropoietin). This item is shown to have a much more direct effect on the red blood cell count, without the side effects of a strong androgen. Financial disinterest finally prompted Syntex to halt production of the U.S. Anadrol 50 in 1993, which was around the same time they decided to drop this item in a number of foreign countries. Plenastril from Switzerland and Austria was dropped; following
soon was Oxitosona from Spain. Many Athletes feared Anadrol 50 might be on the way out for good. But new HIV/AIDS studies have shown a new light on oxymetholone. These studies are finding (big surprise) exceptional anti-wasting properties to the compound and believe it can be used safely in many such cases. Interest has been peaked, and as of 1998 Anadrol 50 is again being sold in the United States. This time we see the same Anadrol 50 brand name, but the manufacturer is the drug firm Unimed. Syntex continues to market & license this drug in a number of countries however (under a few different brand names).

Methenolone is

available as an injection or as an oral. The injection is naturally regarded as better. Its an enanthate ester which is quite long-acting and only needs to be injected once a week in doses of 300-600 mg. Because it by-passes hepatic breakdown on the first pass, it also has a higher survival rate. The orals are a lot less handy, but often preferred by bodybuilders who are afraid of needles or who are already taking one or more injectable compounds. The tabs are in a short-lived acetate form, meaning that doses of 100-150 mg per day are needed, split over 2 or 3 doses, making the tabs quite inconvenient for use. The reason doses need to be split

up, unlike most oral steroids, is because Methenolone is not 17-alpha-alkylated, but 1-methylated for oral bio-availability. This reduces the liver stress, but also the availability, hence the multiple and high doses needed daily.

Real Steris products have the inking STAMPED into the box and the labels cannot be removed from the bottle.

by Bill Roberts - This preparation is quite similar to Sustanon, and is different only in that 100 mg/mL of it (of 250 mg/mL total) is testosterone hexanoate instead of the testosterone decanoate used in Sustanon. For this reason, Omnadren has a shorter half life, and will give a faster

initial increase in blood level. This accounts for the claim of increased water retention and increased side effects, since levels, at first, are higher for the same dosage.

Tablets are orange square tablets, with "10" imprinted on one side and "BD" separated by a score imprinted on the reverse, sealed in foil pouches of 50 tablets.

Jurox: Testo LA (Australia) - 100 mg/ml

The growth hormones is a polypeptide hormone consisting of 191 amino acids. In humans it is produced in the hypophysis and released if there are the right stimuli (e.g. training, sleep, stress, low blood sugar level). It is now

important to understand that the freed HGH (human growth hormones) itself has no direct effect but only stimulates the liver to produce and release insulin-like growth factors and somatomedins. These growth factors are then the ones that cause various effects on the body.

Effective Dose: 1000-5000 IU/week.

Hyperactivity

Warning! If your erection lasts longer than 4 hours (priapism), consult a doctor immediately. Treatment of this condition should not be delayed more than 6 hours, as this can cause damage to the erectile tissue in the penis and irreversible erectile dysfunction. Regular check-ups with your doctor

are recommended to detect any signs of fibrous tissue formation in the penis. Do not use this medicine more than once a day and no more than three times a week. Re-constituted solutions of alprostadil are for single use only. Any remaining solution should be discarded carefully, as instructed by your doctor, and not be kept for a second injection. This medicine will not prevent pregnancy and a reliable form of contraception should be used by couples who do not wish to conceive. Follow the printed instructions you have been given with this medicine. This medicine will not protect you or your partner from sexually transmitted diseases. Using

a condom can provide this protection. This is particularly important since the injection can cause bleeding, which increases the risk of disease transmission. Use with caution if you have a history of Blood clotting disorders. Coronary artery disease. Heart failure. Drug dependence or abuse. Psychiatric illness. Small temporary strokes (transient ischaemic attacks). Lung disease. Not to be used in Children. Conditions in which sexual activity is not advisable, for example severe heart disorders. Conditions such as sickle cell disease, bone cancer or leukaemia in which there is an increased risk of prolonged erections (priapism). Men who have

an implant in their penis. Physical abnormality of the penis, such as severe curvature, scarring or Peyronie's disease. Women. This medicine should not be used if you are allergic to one or any of its ingredients. Please inform your doctor or pharmacist if you have previously experienced such an allergy. If you feel you have experienced an allergic reaction, stop using this medicine and inform your doctor or pharmacist immediately. Side effects Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Because a side
effect is stated here, it does not mean that all people using this medicine will experience that or any side effect. Pain in the penis. Blood clots which form a solid swelling at the injection site (haematoma). Formation of fibrous tissue within the penis. Persistent painful erection of the penis (priapism). Redness, swelling or itching at the injection site. Tightening of the foreskin. Pain in the testicles. Inflammation of the end of the penis (balanitis). Yeast infection. Urethral bleeding. Urgent need to pass urine. Abnormal ejaculation. Low blood pressure (hypotension). Abnormal heart beats (arrhythmias). The side effects listed above
may not include all of the side effects reported by the drug's manufacturer. For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist. How can this medicine affect other medicines? This medicine should not be used with any other treatment for erectile dysfunction. People taking medicines to prevent the blood clotting (anticoagulants), such as warfarin and heparin, may have an increased risk of bleeding after the injection.

In bodybuilding circles Cytomel is mostly used as fat-loss drug. Thyroid hormones are often referred

to as the metabolic regulators of the body. High levels of T3 speed up the metabolism of an individual, allowing him to burn more calories and use calories more sufficiently. Generally ectopmorphic body-types have very high thyroid levels and in some cases a slight undiagnosed form of hyperthyroidism. Both hyper-and hypothyroidism can have severe consequences on an individual, such as goiters and other nasty stuff, so messing with your thyroid is not something I would advise to beginners. As with insulin, misuse of this compound can leave you dependent on exogenous T3 for the rest of your life (remember Frank Zane?). So some caution

and research is required before putting Cytomel in your body. Generally cycles should be limited to 4-6 weeks tops, I recommend 3 and alternating cycles with 3-week cycles of clenbuterol. But most importantly, to avoid a crash or a shock to the thyroid function doses need to be built up over time and tapered off again. More so for cytomel than for any other drug in existence.

Drug Class: Highly Anabolic/Androgenic Steroid (Oral)

DHT Conversion: It is a derivative of DHT

Since testosterone is the primary male androgen, we should also expect to see pronounced androgenic side effects with this drug. Much intensity is

related to the rate in which the body converts testosterone into dihydrotestosterone (DHT). This, as you know, is the devious metabolite responsible for the high prominence of androgenic side effects associated with testosterone use. This includes the development of oily skin, acne, body/facial hair growth and male pattern balding. Those worried that they may have a genetic predisposition toward male pattern baldness may wish to avoid testosterone altogether. Others opt to add the ancillary drug Propecia? which is a relatively new compound that prevents the conversion of testosterone to dihydrotestosterone. This can greatly reduce the chance

for running into a hair loss problem, and will probably lower the intensity of other androgenic side effects.

High Blood Pressure: Yes

Individuals who have lost at least 2.5 kg body weight by dietary control and increased physical activity in the preceding month.

Water Retention: Yes, but less than testosterone

"Over time, the drug causes the estrogen receptor on cells to change and form a pocketlike structure that allows other proteins to bind there. The proteins action somehow changes the cell's reaction to Tamoxifen. Theres more to the article but this is the essence of it. Probably you will find something

in your papers as it from the Associated Press Newswire. But just in case - thought you should be made aware."

Clenbuterol can cause a solid, highly qualitative muscle growth which goes hand in hand with a significant strength gain. Clenbuterol also has a strong anti-catabolic effect, which means it decreases the rate at which protein is reduced in the muscle cell, consequently causing an enlargement of muscle cells. For this reason, numerous athletes use clenbuterol after steroid treatment to balance the resulting catabolic phase and thus obtain maximum strength and muscle mass. Please note, though, there are no scientific

evidence these effects, that are proven in animals, also occurs in humans during the use of clenbuterol.

Diazepam has reportedly decreased the elimination of digoxin in some patients. Digoxin toxicity has occurred in a patient receiving alprazolam and digoxin. The interaction between benzodiazepines and digoxin may be the result of increased protein binding of digoxin and/or an effect of benzodiazepines at the renal tubules, which decreases the elimination of digoxin. Pending further clarification of this interaction, patients receiving a benzodiazepine and digoxin concurrently should be monitored for increased serum digoxin levels.

Clomid, at recommended dosages, is generally well tolerated. Adverse reactions are usually mild and transient and most disappear promptly after treatment is discontinued.

Doses are usually in the 200-600mg/week range, and since the ester length of this steroid is reasonably long, it only needs to be administered via intramuscular injection once or twice a week. Of course, it is equally useful in both cutting as well as bulking cycles.

Popular steroids stacked with Masteron(Masteron 100) (drostanolone propionate) include Parabolan (trenbolone hexahydrobencylcarbonate), Winstrol (stanozolol), and Anavar (oxandrolone).

Athletes rarely experience any side effects. It is not hepatoxic, and gynecomastia should not be a concern since it does not convert into estrogen. Some possible side effects of Masteron(Masteron 100) include acne, accelerated hair loss, and increased aggression. The main disadvantage is a very poor availability on the black market and its high price.

Conclusion

Product Description: Harifin

Enhanced sexual performance

In the United States, tadalafil has Food and Drug Administration approval and became available in December, 2003 as the third impotence pill after sildenafil (Viagra) and vardenafil (Levitra). Due

to its 36-hour effect it is also known as the weekend pill. It should be noted that the drug has not been formally studied in regard to multiple sexual attempts during a 36 hour period.

Anabolic/Androgenic ratio:100/100.

There is no need for an anti-estrogen as Winny may have such a property of its own and does not aromatize at any rate. The only counter-indication with Winny would perhaps be an anti-hypertensive if you use for a longer stack. Be sure to get liver values checked if you use for longer than 6 weeks on end. There is no real use for Clomid or Nolva post-cycle for Winny specifically since there is no post-cycle

aromatisation to cause negative feedback. That makes whatever gains you made on Winny quite easy to maintain.

The chance of finding real Danabolan on the black market is around 5%. That is the reason why we take a chance and claim that only very few of you who read this book will have ever held an original Danabolan in your hand, let alone injected one. Those who have not tried the originals simply cannot take part in this discussion. As to the effect, the difference between the real French Danabolan and the fakes circulating on the black market is gigantic.

50 mg tablets are pink square tablets, with "50" imprinted on one

side and "BD" separated by a score imprinted on the reverse, sealed in foil pouches of 500 tablets.

Deca-Durabolin is the Organon brand name for nandrolone decanoate. World wide Deca is one of the most popular injectable steroids. It's popularity is likely due to the fact that Deca exhibits significant anabolic effects with minimal androgenic side effects.

Anxiety, blistering, peeling, or loosening of skin and mucous membranes, blurred vision, chest pain, confusion, cough, dizziness, fainting, fast heartbeat, lightheadedness, pain or swelling in fingers, hands and legs, shortness of breath or trouble breathing, weakness

or sleepiness, yellow eyes or skin.

The dose of Arimidex is one 1mg tablet taken once a day.

Effective Dose: 3 tabs per day.

Clomid is indicated for the treatment of ovulatory dysfunction in women desiring pregnancy.

How does KAMAGRA work?

Virormone (Testosterone propionate) is used on so few occasions in weightlifting, powerlifting, and bodybuilding not because it is ineffective. On the contrary, most do not know about propionate and its application potential. One acts according to the mottos "what you don't know won't hurt you" and "If others don't use, it can't be any good."

We do not want to go this far and call propionate the most effective testosterone ester-, however, in certain applications it is superior to enanthate, cypionate, and also undecanoate because it has characteristics which the common test-osterones do not have. The main difference between propionate, cypionate, and enanthate is the respective duration of effect. In contrast to the long-acting enanthate and cypionate depot steroids, propionate has a distinctly lower duration of effect. The reader learns how long this time is from the package insert of the German Jenapharm GmbH for their compound "Testosteron Jenapharm" (see list

with trade 'names): "Testosterone proprionate has a duration of effect of I to 2 days." An eye-catching difference, however, is that the athlete "draws" distinctly less water with propionate and visibly lower water retention occurs. Since propionate is quickly effective, often after only one or two days, the athlete experiences an increase of his training energy, a better pump, an increased appe-tite, and a slight strength gain. As an initial dose most athletes pre-fer a 50-100 mg injection. This offers two options: First, because of the rapid initial effect of the propionate-ester one can initiate a sev-eral-weeklong steroid

treatment with Testosterone enanthate. Those who cannot wait until the depot steroids become effective inject 250 mg of Testosterone enanthate and 50 mg of Virormone (Testosterone propionate) at the beginning of the treatment. After two days, when the effect of the propionates decreases, another 50 mg ampule is injected. Two days after that, the elevated testosterone level caused by the propi-onate begins to decrease. By that time, the effect of the enanthates in the body would be present; no further propionate injections would be necessary. Thus the athlete rapidly reaches and maintains a high testosterone level for a long time due to
the depot testo. This, for example, is important for athletes who with Anadrol 50 over the six-week treatment have gained several pounds and would now like to switch to testosterone. Since Anadrol 50 begins its "breakdown" shortly after use of the compound is discontinued, a fast and el-evated testosterone level is desirable. The second option is to take propionate during the entire period of intake. This, however, requires a periodic injection every second day.

Clenbuterol (clenbuterol hydrochloride) tablets. Each clenbuterol tablet contains 0.02 mg. clenbuterol hydrochloride. Clenbuterol, comes in packs of 200 tablets

and is manufactured by Laboratorios Alchemia.

Example of a first cycle:

Carbohydrate Cravings - To counter this, some methods will be touched on later. As with most diets, willpower is sometimes the single most important factor.

Effective Dose: 20-50 mg/day.

Clomid also has the property of reducing the adverse effect of exercise-induced damage of muscle tissue. This is very significant for endurance athletes but is not very significant, if at all significant, with reasonable weight training. Clomid does not perceptibly affect gains of the weight trainer either favorably or adversely in my experience.

Excessive water retention and aromatizing can be avoided in most cases by simultaneously taking Nolvadex and Proviron.

EPO is a primary growth product in which it regulates red blood cell formation in the body. This is highly liked by long distance runners and overall endurance athletes. The red blood cell production, which involves removing and storing a quantity of blood to later replace it when in need for the transport of oxygen more efficiently, which gives the athlete a much increased boost.EPO's chemical blood doping procedure can come with its own problems with cell volume can be very dangerous, where cell concentration

can reach life threatening point if the drug is used incorrectly resulting in heart attack, stroke, seizure even death. So one must be very cautious and be overlooked by a doctors assistance.

Primobolan Depot

Before you start any treatment with KAMAGRA, be sure to ask your healthcare provider if your heart is healthy enough. If you're a man who uses nitrate drugs, like nitroglycerine, never take KAMAGRA. The combination of KAMAGRA and nitrates can make your blood pressure suddenly drop to unsafe levels. You could get dizzy, faint, or even have a heart attack or stroke. Nitrates are found in many prescription medications that

are used to treat angina (chest pain due to heart disease) such as:

Rohypnol causes partial amnesia; individuals are unable to remember certain events that they experienced while under the influence of the drug. This effect is particularly dangerous when Rohypnol is used to aid in the commission of sexual assault; victims may not be able to clearly recall the assault, the assailant, or the events surrounding the assault. It is difficult to estimate just how many Rohypnol-facilitated rapes have occurred in the United States. Very often, biological samples are taken from the victim at a time when the effects of the drug have already

passed and only residual amounts remain in the body fluids. These residual amounts are difficult, if not impossible, to detect using standard screening assays available in the United States. If Rohypnol exposure is to be detected at all, urine samples need to be collected within 72 hours and subjected to sensitive analytical tests. The problem is compounded by the onset of amnesia after ingestion of the drug, which causes the victim to be uncertain about the facts surrounding the rape. This uncertainty may lead to critical delays or even reluctance to report the rape and to provide appropriate biological samples for toxicology testing.

Femara is an anti-aromatase and binds to the aromatase enzyme to prevent aromatizable steroids from being converted into estrogen. Femara has just recently started becoming popular in the bodybuilding community and positive effects of it can be seen with as little as 0.5 mg/day and up to 2.5 mg/day (which is the normal dosage). If a person can achieve acceptable results with 0.5 mg/day it would be best to do so due to the cost of Femara and its impact to negatively affect lipid profiles. There are no known drug interactions between Femara and other drugs, however, the typical side effects associated with most anti-estrogens still apply to Femara. It is also recommended to run Femara through the entire course of the steroid cycle, but anecdotal reports seem to suggest that some people can have an estrogen rebounding effect in some users. These reports have not been confirmed.