The Promagnon and P-mag Informative Bible



Promag or as many know it “P-Mag”, is a popular designer anabolic steroid/pro-hormone, it was brought to market in December 2005 as Promagnon-25 by Peak Performance Labs, Promagnon-25 has since been discontinued and has gained popularity as affordable clones have become available such as Competitive Edge Labs P-Mag, which we will be using as our reference for this article.

Promag is a versatile compound that will produce lean muscular gains and is suitable for cutting or bulking, however is typically most used when bulking due to reasons noted shortly below.  Promag remains a popular due to it’s consistent gains, minimal side effects and “dry” gains that are relatively easy to maintain post cycle, subsequently it’s also a popular selection for beginners due to the reasons aforementioned above.

Note:  Due to the similarities between both Promag/P-Mag  and Halodrol/H-Drol, this article largely shares information from our h-drol article.

Halodrol vs Promagnon

The nomenclature of the p-mag compound is (4-Chloro-17a-Methyl-Andro-4-Ene-3,17b-Diol), for those who read our Halodrol Informative Bible, you’ll notice the nomenclature of p-mag is nearly identical to h-drol (or halodrol) and this is where things can get confusing.  While both P-Mag and H-Drol are very similar in many areas such as dosages, potency, common sides and nomenclature, however there are some small differences worth pointing out.

  1. Promag/P-Mag is considered a better bulker and slightly better for strength gains than Halodrol/H-Drol.
  2. It’s been noted that P-Mag begins working faster than H-Drol, therefore results may come slightly earlier in the cycle.
  3. Water retention on P-Mag while minimal may be slightly higher than H-Drol.

In general users whom want to focus on adding size, P-Mag is generally a better choice than H-Drol, however those wishing to cut or recomp (gain muscle, lose fat simultaneously) H-Drol is the logical choice.

Maintaining Health

Promag/P-Mag is an oral based designer steroids that are processed by the liver, they’re also a methylated compound thus put additional strain on our bodies liver.  Like many other compounds on the market p-mag can have a negative impact on blood pressure, lipid values, cholesterol levels and will put stress on the bodies endocrine system, there is also additional side effects (discussed shortly) that can also present themselves, however in most cases they’re typically minor and a slight inconvenience.  Luckily through proper planning and supplementation we can help our bodies protect our livers, lipid values, cholesterol levels and help control adverse blood pressure effects, these are all well documented side effects in just about every compound on the market, therefore supplement companies have been making “all-in-one” cycle protection products that work to prevent these side effects or reduce their magnitude.  Therefore ANYONE running P-Mag, is required to supplement with one of the following products throughout the entire duration of the cycle.

  1. Anabolic Innovations – Cycle Support (Powder)
  2. Anabolic Innovations – Life Support (Capsules)
  3. Competitive Edge Labs – Cycle Assist (Capsules)

Either of the three are suitable choices, cost should be the deciding factor or whether you prefer capsules or powder.  A general rule of thumb is to pre-load either of the products two weeks prior to beginning your cycle and continue to use throughout the entire cycle from start to finish, buy accordingly so you have enough on hand.   These products will assist your body with maintaining healthy blood pressure, prostate health, liver function and lipid profile by utilizing popular herbs such as Hawthorn Berry (BP), NAC (liver), Milk Thistle (liver), Saw Palmetto (prostate) among others.  Please follow the manufactures recommended dosage (as per bottle) as it’s the dosage known to work best.


For first time users it’s recommended to begin with 50mg and then slowly work it up to 75mg which is considered to be P-Mag’s “sweet spot”.  More experienced users with past pro-hormone or designer steroid usage can experiment with dosages to around 125mg, however the added benefit may be negligible compared to the added sides at high dosages.

Most users begin to experience the P-Mag benefits somewhere around week 2 of the cycle, therefore P-Mag Cycles are usually 5-6 weeks in length, users stacking with another compound should stick to P-Mag Cycles that are 5 weeks in length.  For the most part, many consider 5 weeks to be the ideal cycle length for P-Mag in terms of risk and gains.  It is not advised to run P-Mag any longer than 6 weeks, even if being ran solo, this is simply for overall health as 6 weeks of a methylated compound is certainly more than enough and any longer than 6 weeks may result in possible health issues.

As noted Promag (P-Mag) has a very long half life, therefore it’s recommended that the largest dosage be taken in the morning, assuming that you’re taking 75mg of P-Mag, you would be best served by taking two pills in the morning (50mg) and one pill before workout/around dinner (25mg).

Common Side Effects

The occurrence rate of side effects while using Promag/P-Mag are typically mild, however they’re completely user unique, some users may not experience any side effects, while other users may experience a combination of sides.  It should be noted that the majority of these side effects are simply of inconvenience more so than a possible health affecting issue and for the most part can be resolved through simple supplementation, take sometime to read our article on combating side effects.

  • Decreased Libido/Sexual Function
  • Patterned Acne
  • Hair Thinning/Shedding (Especially those prone to hair loss)
  • Increased hair growth
  • Puffy / Sensitive Nipples
  • Sore/Aching Joints
  • Back Pumps (Dull pain in back after/during workouts)
  • Increased aggression, head aches, lethargy and various other sides can happen however aren’t terribly common.

As you can see there are various *possible* side effects, including some not listed, however for the most part users have limited sides on P-Mag and the ones that are most typical (Acne, Libido Loss, Back Pumps) can be mitigated as noted in our combating side effects article.

Typical Results

P-Mag is a dry compound therefore should produce excellent lean body mass increases without any water weight or bloating.  It’s also a great multi-purpose compound with many people using it for a wide variety of stages including cutting, bulking and recomping (gaining muscle, losing fat simultaneously), as always your diet will dictate your results.

  • When used in a bulking diet, users typically report gains somewhere in the 11-15lb neighbourhood on a 5 week cycle at 75mg.
  • When used in a recomp diet, users typically report gains somewhere in the 7-10lb neighbourhood while simultaneously losing 1-2% bodyfat on a 5 week cycle at 75mg.
  • When used in a cutting diet, users typically report gains somewhere in the 3-5lb neighbourhood while losing 1-3% bodyfat on a 5 week cycle at 75mg.

These ranges are considered normal, however some users have reported gains in upwards of 20lbs and some users may not experience many noticeable gains at all, however lack of results is typically a result of poor diet and workout regiment.



P-Mag can be stacked with other NON-Methylated compounds, it is critical that it not be stacked with another Methylated compound, doing so can put serious strain on your liver.  Due to P-Mag being relatively mild it makes for a solid stacker, however stacking two compounds should only be done by users with past pro-hormone or designer steroid experience.  Below is a short list of compounds that are commonly stacked with P-Mag.

  1. BOLD (1,4AD)
  2. 11-OXO (Adrenosterone)
  3. Furazadrol or Furaguno
  4. Propadrol

Post Cycle Therapy

Possibly the most important item on the menu is post cycle therapy, when taking a foreign substance (Promag/P-Mag) that creates testosterone your body begins to shut down it’s normal production, when you stop taking a pro-hormone or steroid compound your body needs a way to jump start it’s own natural production again, while limiting endocrine system stress, this is why we need post cycle therapy.  It’s not just as simple as that however, when coming off of a compound your body goes through a very stressful phase as your hormones are out of balance, failure to mitigate these imbalances can result in a unique set of side effects not related to the P-Mag compound.  Below is just a *few* of the noted side effects of an improper post cycle therapy regiment, it should also be noted that the occurrence of side effects in the post cycle stage is more common than the “on-cycle” phase, however a properly planned post cycle therapy regiment can mitigate these risks.

  • Gynecomastia (or Man Boobs)
  • Anxiety/Depression (Can range mild to severe)
  • Body Aches/Pains (Can range mild to severe)
  • Impotence and other sexual function side effects.
  • Loss of gains made on cycle.

As you can see, these are side affects we definitely want to avoid at all costs, so let’s start discussing a proper Promag/P-Mag PCT (Post Cycle Therapy).

Post Cycle General:  You should begin your PCT regiment immediately after your pro-hormmone or designer steroid cycle, it should begin the day after your last dosage of P-Mag.  PCT regiments are tpyically 4-6 weeks depending on the type of compound being used, user and type of PCT.  As noted in the previous section under “Maintaining Health”, you should continue to use Life Support, Cycle Assist or Cycle Support throughout your entire cycle, INCLUDING your PCT regiment.

  • Boost Natural Testosterone Production.
  • Regulate Estrogen.
  • Restore HPTA function.
  • Reducing SHBG.
  • Control Cortisol Effects.

Over The Counter:  An OTC (Over The Counter) post cycle therapy regiment is simply that, a PCT that consists with strictly over the counter products that can be bought at major supplement outlets such as or stores such as Vitamin shoppe or GNC.  The following is just an example PCT, you can interchange other similar products if you have a preference.

  1. Competitive Edge Labs – PCT Assist.  An ALL purpose PCT product that will help boost testosterone production, help balance hormones and assist with estrogen regulation.
  2. SAN Attitude.  An effective Estrogen Regulator and Testosterone Booster.
  3. (Optional) Driven Sports – Lean Xtreme.  One of the most popular and proven products that control the effects of Cortisol.

When using an over the counter PCT for this compound, it’s recommended to run a 6-week PCT regiment, assuming you were using the products above, here is how you would schedule your PCT.

Week 1-3: PCT Assist, Lean Xtreme.  |   Week 3-4 PCT Assist, SAN Attitude, Lean Xtreme |  Week 5-6 SAN Attitude

For all products, follow the dosages recommended by the manufacturer.

Research Drugs:  The MOST effective PCT regiment is one that includes a prescription/research drug, however some users prefer not to go this route, you may be asking why would someone go another route if this is the most proven and effective PCT method.  There’s various reasons but one to point out is that these drugs aren’t technically available without a prescription, these are also very powerful drugs that can also have their own side effects, notice that I say they aren’t “technically” available that’s because they can be purchased online at research drug sites, I won’t provide you with any links, if you chose to go this route googling for these sites will won’t take you long.

1. Nolvadex (Tamoxifen Citrate).  Comes in Liquid or Pill form.
3. Optional (But recommended):  Driven Sports Lean Xtreme

It’s reocmmended that Users with deep pockets can also add in a natural testosterone booster such as S.A.N. MyoTEST, in the event you go this route, it would be best to run a test booster starting week two through week six.  Below is an example PCT when using a research drug (such as Nolvadex aka Tamoxifen Citrate, as we are in this case).

Week 1-2 Nolvadex 20mg, Lean Xtreme (3 caps) | Week 2-4 Nolvadex 10mg, Lean Xtreme (3 caps)

Example Cycle

This is an example cycle from start to finish to give you an idea how it should look, assumes you’re going with a prescription drug for PCT.  From start to finish our properly designed cycle will take approximately 11 weeks total.

  • Week 1-2:  Pre-load Cycle Support or Life Support @ Bottle Recommended dosages.
  • Week 2:  Cycle Support or Life Support | P-Mag  50mg
  • Week 3-7:  Cycle/Life Support | P-Mag 75mg
  • Week 7-9:  Cycle/Life Support | Nolvadex 20mg | Lean Xtreme.
  • Week 9-11:  Cycle/Life Support | Nolvadex 10mg | Lean Xtreme.

Drug Testing

Those being tested for elevated testosterone levels and or lowered estrogen levels will produce a positive test result while on Promag/P-Mag, it’s also important to note that if using a research/prescription drug for your PCT regiment, this will also cause a positive test result in many cases.


It’s recommended that users supplement with a quality Multi-Vitamin and Fish Oil throughout the ENTIRE cycle.  You should stop taking any other supplements on Cycle as well such as Creatine, NO, Test Boosters and so on, these should be saved for PCT in order to preserve strength.  It’s heavily recommended that during PCT, you add Creatine and a Cell Volumizer type of product.  Supplementing with Protein is highly recommended on cycle


Users who are on anti-depressant or anti-anxiety medication may experienced increased anxiety/depression while on cycle and during PCT.  It is HEAVILY advised not to drink alcoholic drinks while on Cycle & PCT, doing so will put significant strain on the liver and can result in a major health hazard.  Users should avoid using stimulants on cycle as blood pressure may elevate too high and possibly cause fainting.  In general, avoid starting any new medications while on cycle or just before, if you’re concerned about a possible interaction consult your doctor.  Users should also eat a clean diet on cycle.


We are not doctors, therefore before starting any supplement or training regiment you should consult with your doctor.  The information being provided is simply personal opinion.

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