Enclomiphene: Review, PCT, Side Effects, Cycle

Enclomophine is a stereoisomer of the popular SERM Clomid, with promises of being just as effective with fewer drawbacks. Could this be the next big thing in your PCT stack? Let's find out.
Enclomiphene for Bodybuilding

Ever wondered if there’s a way to boost your testosterone levels without diving into the realm of Testosterone Replacement Therapy (TRT)? 

Enter Enclomiphene, the estrogen receptor antagonist that’s making waves in the quest for naturally elevated testosterone. 

TRT might be a common solution, but the side effects are like unwelcome guests at a party – cardiovascular concerns, prostate issues, and cholesterol troubles.

Now, imagine a superhero swooping in to save the day – Enclomiphene! This compound binds to estrogen receptors, preventing estrogen from wreaking havoc in your system, and the result? 

Less estrogenic effects and a potential boost in testosterone. It’s the “Hey, that guy stole my parking” moment for your hormonal balance.

But what makes Enclomiphene the talk of the town? Not only does it dodge the notorious emotional rollercoaster associated with its cousin Clomid, but it also steps up as a viable alternative to TRT.

Ready to explore the science behind this rising star? Join us on a journey through the benefits, comparisons, and even a dash of humor as we unravel the mysteries of Enclomiphene!

Key Takeaways

  • Enclomiphene distinguishes itself from Clomid by promoting mental well-being, eliminating the notorious “Clomid Crazies,” making it a more favorable option for users seeking hormonal balance.
  • Enclomiphene’s efficacy extends beyond mental health, offering a comprehensive solution by eliminating the need for HCG post-cycle. This positions it as a versatile alternative to hormone replacement therapy.
  • Enclomiphene demonstrates potential in stimulating testosterone, presenting a viable option for those recovering from steroid cycles.
  • While individuals with hypogonadism may legally access Enclomiphene through a healthcare provider, athletes governed by WADA must obtain a prescription to avoid legal consequences, emphasizing the importance of regulatory compliance.
  • Enclomiphene outshines Clomid in terms of side effects, with minimal reported issues such as diarrhea and nausea.

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What is Enclomiphene?

Features EnclomipheneClomid
🧠 Enhances mental healthβŒβœ…
HCG post cycleβŒβœ…
β™‚ Increases testosteroneβœ…βœ…βœ…βœ…βœ…
πŸ’Š Dosage12.5mg/day25-50mg/day
Cycle12-14 days15 days
⚠️ Side effectsMildExtreme
πŸ’ͺ Increased muscle growthβœ…βœ…

Enclomiphene is what’s known as an estrogen receptor antagonist, meaning that Enclomiphene will bind to estrogen receptors in your body and prevent estrogen from actually binding to them, and therefore you have “less estrogenic” effects in your body (2).

Think of it as “Hey that guy stole my parking” and now you can’t get your taco at this gas station.

Enclomiphene has been shown to increase FSH (Follicle-stimulating hormone) and LH (Luteinizing hormone) as well as raise serum total testosterone in men (3).

Under the brand name Androxal it has recently been subscribed to men who suffer from low testosterone, want an alternative to TRT, and are not interested in Clomid (clomiphene citrate) which has enormous emotional side effects (4).

How do we cure low Testosterone?

The easiest solution to this would be to go on TRT – Testosterone Replacement Therapy – where a doctor prescribes you a small amount of exogenous testosterone to mimic that of what you should be producing naturally.

Is TRT the only way? Doctors have concerns because TRT does come with side effects such as cardiovascular issues, prostate concerns, as well as worsening cholesterol levels (2).

Enclomiphene seems to be a good option, an estrogen receptor antagonist that can promote gonadotropin-dependent testosterone secretion – bonus it’s not a steroid and you keep your natty status.

How does Enclomiphene work?

While SERMs (Selective estrogen receptor modulators) can block some of the estrogen in the body, Enclomiphene (which as in an antagonist) will have an affinity to block estrogen receptors in all parts of the body (5).

By antagonizing the negative feedback on gonadotropin-releasing hormone (GnRH), it can stimulate the release of FSH.

The application for bodybuilding is obviously a bit different. As you inject yourself with exogenous testosterone (i.e. go on a cycle) your natural testosterone does shut down.

This is due to the back loop that leads to the suppression of LH and FSH; and with prolonged use, suppression of testosterone as well (hypogonadotropic hypogonadism).

After you have completed your cycle you will (hopefully) make use of a PCT protocol, to restart your natural hormones as well as control the rise of estrogen in your body.

The usual suspects are HCG (Human chorionic gonadotropin) to restart testosterone production as HCG  acts like LH.

Then something to control estrogen, SERMs (like Clomid and Nolvadex) or Aromatize inhibitors (Arimadex, Aromasin, or Letrozole).

Enclomiphene, as well as Zuclomiphene are stereoisomers of Clomiphene (Clomid), the former being isolated to function by itself.

Enclomiphene is antiestrogenic, and increases the pituitary secretion of LH, and enhances the production of testosterone.

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FountainTRT can prescribe you the perfect dose of enclomiphene and their affordable blood work will keep you dialed in the long term for NO extra cost.

Benefits of Enclomiphene

When compared to Clomid, the main benefit is going to be the lack of side effects. Clomid is notorious for having adverse effects on mental health (5), even coined by some as “Clomid Crazies“.

A study in 2011 found that 41% of subjects experienced depression, and 45% experienced mood swings whilst on Clomid.

Enclomiphene on the other hand has been shown to not have a lot of adverse effects, especially on mental health.

Enclomiphene also completely replaces the need for HCG post cycle. Since Enclomiphene has been shown to increase the secretion of LH, there isn’t a need for HCG.

In fact, it is prescribed by doctors as an alternative to hormone replacement therapy, it’s that effective.

Moreover, the benefits of Enclomiphene extend beyond its favorable side effect profile. 

Unlike Clomid, Enclomiphene’s impact on mental well-being is notably gentle, offering users a more stable and positive experience throughout their hormone optimization journey. 

The absence of the infamous “Clomid Crazies” positions Enclomiphene as a more user-friendly option, aligning with the broader goal of achieving hormonal balance without compromising mental health.

In addition to its psychological benefits, Enclomiphene’s role in post-cycle therapy takes a revolutionary turn.

By stimulating LH secretion, it not only safeguards testosterone levels but renders the use of HCG redundant. 

This multifaceted approach not only underscores Enclomiphene’s effectiveness but also positions it as a versatile and comprehensive solution for individuals seeking an alternative to traditional hormone replacement therapy. 

As users navigate the landscape of testosterone optimization, Enclomiphene emerges not just as a safer choice but as a holistic and transformative tool in the pursuit of hormonal equilibrium.

Navigating the legal landscape of Enclomiphene raises questions for those grappling with hypogonadism and a distaste for traditional Testosterone Replacement Therapy (TRT).

Legally, individuals suffering from hypogonadism have the potential for a health practitioner to prescribe Enclomiphene, providing an alternative path to elevate testosterone levels

However, a noteworthy caveat emerges for athletes engaged in sports regulated by the World Anti-Doping Agency (WADA): the use of Enclomiphene is strictly prohibited without a valid doctor’s prescription.Β 

In the competitive realm of sports, Enclomiphene requires a sanctioned medical endorsement to sidestep legal repercussions. 

Who should use Enclomiphene?

The question of who stands to benefit from Enclomiphene arises in the context of steroid use. 

When embarking on a steroid cycle, the pituitary glands cease the production of luteinizing hormone (LH), leading to a decline in serum testosterone

Upon concluding the cycle, individuals typically face a decision: either embark on a cruise, essentially a form of testosterone replacement therapy (TRT), or initiate a Post Cycle Therapy (PCT) protocol.

Traditionally, the go-to advice involved incorporating Human Chorionic Gonadotropin (HCG) and Clomid into the post-cycle regimen. 

However, as the sands of time have shifted, so has the approach to optimizing hormonal recovery. 

Enclomiphene emerges as a compelling alternative to conventional wisdom, offering a fresh perspective for individuals navigating the intricate landscape of steroid cycles and their aftermath.

In this evolving landscape, the traditional notions of post-cycle strategies yield to the promising potential that Enclomiphene brings to the forefront.

Enclomiphene vs HCG

For testosterone production, let’s compare a study of Enclomiphene (12.5mg dose) vs a study of HCG at 2000 IU Weekly.

In only 3 months, the Enclomiphene dose saw an increase of 55% in Mean Morning Total Testosterone Level (6).

In 6 months, HCG increased Testosterone by 31% (7). (Keep in mind these were done by different groups, and various variables do come into play as a result).

Enclomiphene vs Clomid

For testosterone production, let’s compare the same Enclomiphene study vs a Clomid study conducted in 2003.

As aforementioned, Enclomiphene increased testosterone by 55%. The Clomid study had participants run 150mg Clomid weekly, for 4 months.

Clomid at this dose resulted in an average increase of testosterone by 50.22% (8).

As someone who will be suffering from lower LH and FSH due to the use of anabolic substances, Enclomiphene does seem like a great alternative to HCG or Clomid post cycle – bonus: less pinning.

Keeping in mind, any PCT will probably be less than 3 or 4 months and will need management of other factors such as estrogen.

How to use Enclomiphene?

In order to be 100% of what your levels are, I would highly recommend getting your bloodwork done to see exactly how an Enclomiphene PCT is affecting you.

Additionally, Enclomiphene is relatively new to the bodybuilding scene and anecdotal evidence is scarce, so dosage is hard to determine. Let’s use this study for reference (10).

Enclomiphene Dose (mg, Daily) πŸ’ŠTotal Serum Testosterone increase after 14 Days 🎯

Based of this, you could follow the following protocol:

  • Extra-heavy dose period – Take 50mg of the medication for 14 days, every day.
  • After heavy dose period – Take 25mg of the medication for 14 days, every day.
  • Average dose – Take 12.5mg of the medication for 14 days, every day.

How to stack Enclomiphene in your PCT?

Since Enclomiphene is already such a powerful player, for smaller cycles I do not think more is necessary. For heavier cycles, yes more will be necessary.

HCG and Enclomiphene

HCG is dosed in IU’s, and dosage depends on how hard your cycle will have suppressed your natural testosterone.

250mg of Test Cyp a week might not even need a HCG dose at all, if you went the kitchen sink approach, you get the idea.

1.) Mild Cycle

  • HCG: 1000 – 2000 IU Every Day for the first 4 – 5 days.
  • Enclomiphene: 12.5mg everyday, for 14 days.

2.) Larger Cycle

  • HCG: 2500 – 5000 IU Every Day for the first 4 – 5 days.
  • Enclomiphene: 25mg everyday, for 14 days.

3.) Heavy Cycle

  • HCG: 5000 IU Every other day for the first 14 days.
  • Enclomiphene: 50mg everyday, for 14 days.

Keeping in mind that HCG comes with a host of its own side effects. Make use of an AI as necessary, but remember Enclomiphene is already an E2 antagonist due to the FSH secretion.

Enclomiphene Side Effects

When it comes to potential side effects, Enclomiphene presents itself as a relatively mild contender, especially when pitted against its counterpart, Clomid. 

While additional trials are imperative for a comprehensive understanding, Enclomiphene presently boasts a comparatively clean slate, with only two reported side effects – namely, diarrhea and nausea

In contrast, the laundry list of potential adverse effects associated with Clomid dwarfs the minimal concerns associated with Enclomiphene.

However, delving deeper into Enclomiphene’s profile, a notable consideration arises from certain studies indicating a potential impact on Insulin-like Growth Factor 1 (IGF-1) levels in the body.Β 

The findings suggest a tendency for Enclomiphene to lower IGF-1 levels, adding a nuanced layer to the evaluation of its effects. 

While these revelations do not overshadow its promising attributes, the correlation with IGF-1 levels underscores the need for continued research to unravel the intricacies of Enclomiphene’s physiological interactions. 

As users navigate the landscape of potential side effects, the evolving narrative of Enclomiphene unfolds, prompting a nuanced understanding that goes beyond the surface of its current profile.

Enclomiphene vs Clomid

As beforementioned, Clomid can be extremely detrimental when taking into consideration how it makes you feel mentally.

While a part of me wants to say “Harden up”, combined with post-cycle depression, Clomid … I’m just not a fan. There is literally no reason for Clomid when comparing it to Enclomiphene.

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Enclomiphene vs HCG

Like we have discussed before, both these two can help with the stimulation of free serum testosterone after a cycle or in someone with hypogonadism.

However, in the two studies mentioned, Enclomiphene has been shown to be slightly more effective compared to HCG. HCG also has more side effects than Enclomiphene.

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Enclomiphene vs Aromasin

Aromasin is known as an Aromatase Inhibitor, a compound that inhibits the Aromatase Enzyme from converting testosterone into estrogen.

High estrogen has various side effects in men such as fat gain, muscle loss, libido problems, and it can also affect you mentally.

Aromasin is definitely a great drug, one of the preferred by bodybuilders to control estrogen side effects on a cycle, and many use it in their PCT to restart testosterone via the suppression of SHGB (sex hormone binding globulin).

Comparing these two, is like comparing a nice car with another nice car. Both have benefits and both have drawbacks.

On cycle, I would prefer Aromasin. Post cycle, I would give Enclomiphene a try.

FAQ’s Regarding Enclomiphene

How quickly does Enclomiphene work?

Enclomiphene has been shown to be effective within a few days of initial use, as its half-life is only 10 hours. It would thus be smart to drink your dose at the same time every day.

Will Enclomiphene cause muscle growth?

Unless you suffer from natural hypogonadism, I don’t see a reason why it would.  Even so, if you have normal testosterone it theoretically could enhance your LH and FSH levels since it’s an antagonist to estrogen itself.

Studies to see what the effects of Enclomiphene on healthy adults don’t really exist – in fact in one study they removed the healthy adults because of safety concerns.

Could it increase muscle growth? Potentially. Would it come with side effects that we aren’t aware of currently? Yes.

Which is better, Enclomiphene or Nolvadex?

Nolvadex is another SERM (Selective Estrogen Receptor Modulator) just like Clomid, but slightly more powerful and effective.

SERMs are pretty much only used when you are in a PCT phase or have estrogenic side effects whilst on cycle.

Both will work to restart testosterone production, and commonly Nolvadex (or Tamoxifen) is more commonly prescribed.

Can a SARM do something similar?

SARMs (Selective Androgen Receptor Modulators) are compounds that bind to Androgen Receptors in the muscle and bones, messaging the body to make these grow and then you achieve muscular hypertrophy, fat loss, and various other benefits.

Take Home Message

Enclomiphene is an emerging drug with powerful results in regards to stimulating testosterone in the male body, not only for men who suffer from hypogonadism but also for men coming off cycle and have suppressed testosterone levels.

Anecdotal evidence is limited, however, the scientific research does show it to be as or even more effective than methods such as HCG or Clomid.

Comments and questions?

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1.) Hill S, Arutchelvam V, Quinton R. Enclomiphene, an estrogen receptor antagonist for the treatment of testosterone deficiency in men. IDrugs. 2009 Feb;12(2):109-19. PMID: 19204885.

2.) Jia H, Sullivan CT, McCoy SC, Yarrow JF, Morrow M, Borst SE. Review of health risks of low testosterone and testosterone administration. World J Clin Cases. 2015;3(4):338-344. doi:10.12998/wjcc.v3.i4.338

3.) https://www.rxlist.com/consumer_androxal_enclomiphene/drugs-condition.htm

4.) https://www.endocrineweb.com/professional/endoscan/201604/abstract/enclomiphene-citrate-improves-hormone-levels-while-preserving-Β 

5.) Celano CM, Freudenreich O, Fernandez-Robles C, Stern TA, Caro MA, Huffman JC. Depressogenic effects of medications: a review. Dialogues Clin Neurosci. 2011;13(1):109-25. doi: 10.31887/DCNS.2011.13.1/ccelano. PMID: 21485751; PMCID: PMC3181967.

5.) https://www.sciencedirect.com/topics/medicine-and-dentistry/estrogen-receptor-antagonist

7.) https://www.endocrineweb.com/professional/endoscan/201604/abstract/enclomiphene-citrate-improves-hormone-levels-while-preserving-

8.) https://www.scielo.br/j/ibju/a/RZqqfTn5tY6BFpV6rp3GMxJ/?lang=en#

9.) Guay, A., Jacobson, J., Perez, J. et al. Clomiphene increases free testosterone levels in men with both secondary hypogonadism and erectile dysfunction: who does and does not benefit?. Int J Impot Res 15, 156–165 (2003). https://doi.org/10.1038/sj.ijir.3900981

10.) https://www.fertstert.org/article/S0015-0282(04)01521-3/fulltext

11.) https://www.researchgate.net/publication/270707189_Abstract_1326_Oral_enclomiphene_citrate_lowers_IGF-1_in_men_with_secondary_hypogonadism_while_raising_testosterone_Implications_for_cancer_prevention


Daniel Louwrens BSc PT

Daniel Louwrens BSc PT | Writer

Daniel Louwrens is a well-rounded fitness professional with over 10 years of experience in bodybuilding and fitness. He holds a BSc in Chemistry from the University of Western Cape and is a certified International Personal Trainer and Nutritionist. He is also a skilled bodybuilder and head coach for Muscle and Brawn. With his knowledge and expertise, he provides personalized training, nutrition, and recovery guidance to help clients reach their fitness goals.

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1 year ago

Hi, thanks for the information, I found it helpful. My situation is age related (being classified as a senior isn’t something I’m overwhelmingly happy with)
I work out 4-5 times a week on weights and 3 times doing a cardio programme. I started on a Testosterone replacement programme (Test Cypionate -intra muscularly weekly) but am still losing muscle mass or at least not building muscle. I’m lean muscle and little body fat and have been like that my entire life. 5ft 9in and 155-157 lbs. Any recommendations for building a bit more muscle and gaining 5 lbs or so of muscle mass?
Thank you

7 months ago
Reply to  John

You did not mention the dose of T Cypionate
You should take 500mg weekly, work hard and proper diet in order to add muscle mass

11 days ago
Reply to  Ali

500mg is way too much for someone classified as a β€œsenior.” 500/week is the foundation for a legit stack cycle. 250, 350 max.

Randolph Whipps MD
Randolph Whipps MD
1 year ago

There is no advantage of enclomiphene over clomiphene (Clomid). The side effects of Clomid in the study sighted by the author were referring to women and were only “associated” the Clomid use. No causal effect of Clomid has been show. The estrogenic antagonism associated with enclomiphene is touted as a good thing. This is opposite of what the medical literature shows. Men need and benefit from estrogen as women do. It protects our brains, bones and heart as it does for women. Men just need lower amounts. I have seen several highly competitive body builders with severe cardiovascular disease most likely due to prolonged suppression of estrogen with aromatase inhibitors and estrogen antagonists. The author’s intent is good but his recommendations do not reflect what the medical literature reflects. DON’T BLOCK ESTROGEN

1 year ago

Enclomiphine is definitely better than clomid for side effects, I am not sure about what studies have been done on men but after trying both you don’t even need a study to know clomid makes you feel strange, enclomiphine does not.

1 year ago

β€œHey that guy stole my parking” and now you can’t get your taco at this gas station.

I have no idea of what you are trying to convey.

Karl Roberts
Karl Roberts
10 months ago

Can I combined Enclomiphene with Aromasin? 12.5mg of Enclomiphene before bed and take 12.5mg of Aromasin around lunch time? Thank you

Roy Marganti
Roy Marganti
9 months ago

I am currently on doctor supervised TRT. I take 70 MG of Test Enanthate weekly in divided doses along with 1400 i.u. weekly in divided doses to keep the boys full and working. Been on this unchanged regimen for a couple of years with excellent results. Problem is compounding pharmacies are no longer allowed to produce HCG. Also HCG does not seem to be working as well as it used to, not to mention the inconvenience of reconstitution, storage in the fridge, and travel with it. Would 12.5 mg daily of Eclomiphine Citrate be a good substitute?

Roy Marganti
Roy Marganti
9 months ago
Reply to  Roy Marganti

Oops. 1400 i.u. of HCG

11 days ago
Reply to  Roy Marganti

You can increase to 25 or even 50mg and that should be a decent substitute on a temporary basis. I’m on 250/week test cyp for TRT and I take 25mg of eclomephine every day to keep at least some level of natural production going. Frankly you probably don’t need HCG to do this, you could switch over to just E-clomephine. But talk to your doc.

9 months ago

I’m about 5 weeks into an Enclomiphene regimen. Before starting, total T was 466… And 16 days after starting, it reached 950. Estradiol was 57 at that same 16-day mark. Just if anyone is interested in numbers.

I’ve read in numerous places that Enclomiphene blocks estrogen in the hypothalamus only… But your wording sounds like the effect is more generalized. The thought behind “it only blocks in the hypothalamus” generally supports a lack of negative side effects… Because estrogen can still wave it’s wand in most places around the body.

Any thoughts?

1 month ago
Reply to  Andrew

What dose of enclomiphene are you taking

Muscle and Brawn Team
1 month ago
Reply to  Stevie

I started at 12.5mg/day and went to 25mg/day, eventually I went to 25mg/day and did 2 on 1 day off. Per person dose is extremely specific so everyone will have to tailor it personally.

Jim J
Jim J
5 months ago

I have VERY low Free T… 3.0 pg/ml it had been low for a few years, but not THIS low! Estradiol 28 pg/ml, SHBG is normal. Total T is 381, but was higher not too long ago… I gave up pistachios, green and black tea, not sure they could be responsible… my nightly low-dose weed smoking could… maybe… it really helps me chill and sleep… I tried TRT cip in ’20, had a knee injury which immobilized my rt leg and ended up with a nasty DVT. I found out then I had Leiden V…
Is enclomiphene perhaps an answer? 67 yrs old.

Jim J
Jim J
4 months ago

Does enclomiphene increase blood clotting risks, like T does? I tried TRT injections and ended up with a nasty DVT… I m also Leiden V.
So far in my limited research, it does not. Aside from slightly increased risk IF T-levels get REALLY high… I don’t see why or how it could… Thx!

Chemical Structure

Mechanism of Action

Enclomiphene is antiestrogenic; it works by blocking estrogen receptors in all parts of the body. And by antagonizing the negative feedback on gonadotropin-releasing hormone (GnRH), it can stimulate the release of FSH. Enclomiphene also increases the pituitary secretion of LH and enhances testosterone production.

Class of Compound


Street Names

clomiphene, Clomifene


Increases secretion of LH, replaces the need for HCG post cycle

Side Effects and Dangers

Diarrhea, nausea

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