13 Deca Durabolin Side Effects and Can They Be Avoided

  • By: Dave Moffat
  • Date: August 11, 2023
Deca Durabolin Side Effects

Deca Durabolin, known under its scientific name Nandrolone decanoate, is a popular anabolic steroid used by athletes and bodybuilders to gain strength and size.

It was first made to treat diseases that cause muscle loss, but many people also use it to improve their performance.

Despite its positive effects, however, there are several side effects associated with Deca Durabolin that should be taken into consideration.

When used responsibly to avoid major health risks such as acne and hair loss due to hormonal imbalance, the user can reap the rewards while taking precautions to ensure there did not suffer adverse side effects.

This post has more information about this powerful anabolic steroid. It talks not only about how it can be used, but also about some of its less well-known history in terms of how it was used and how it came to be.


Before we begin, there are a few reasons why bodybuilders and fitness professionals should avoid using Deca. First and foremost, Deca is a synthetic anabolic steroid, which means it can have negative side effects. Obviously!

Second, some alternatives are much safer, work better, and are certified, like CrazyBulk supplements. Finally, because Deca is banned in the United States, using it may get you in hot water.

That is why I personally advocate for a far safer, legal, and healthier option. Click on the button below:

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Benefits of DecaDuro

  • Explosive power and strength for runners during competitions
  • Preserve lean muscle whilst reducing body fat
  • Relieve joint & tendon pain
  • Fast muscle recovery after grueling workouts

In this article, we will look at the most common and dangerous Deca Durabolin side effects:

1. High Calcium Levels in the Blood

High calcium levels can be a very serious issue, especially if they are the result of Deca Durabolin use.

Those who take this supplement must be aware of all possible side effects and take special caution to not exceed 200mg per week for the safe use of this supplement.

If any side effects are experienced, seek medical attention immediately, as an increase in calcium levels could lead to kidney failure, heart attacks, or other cardiovascular diseases.

Additionally, it is important to discuss any other medications or supplements you may be taking with your doctor as they could interfere with how Deca Durabolin is metabolized by the body and result in further complications.

2. Irritation of the gastrointestinal tract

Gastrointestinal irritation is a common and often under-diagnosed condition that involves inflammation of the stomach and intestines and can cause discomfort in the form of abdominal pain, nausea, or diarrhea.

It can be triggered by infection, food allergies, or even stress. Long-term or high-dosage use at Deca-Durabolin may increase susceptibility to this issue.

While the symptoms may be minimal and clear on their own in some cases, it’s important to closely monitor them to make sure they’re not worsening.

Professional medical attention should always be sought out if gastrointestinal irritation persists or worsens.

3. Prostate Gland Cancer

Prostate cancer is a serious potential risk when using Deca Durabolin, an anabolic steroid that contains the active ingredient Nandrolone.

Nandrolone is a synthetic version of testosterone, and testosterone can stimulate the growth of prostate glands.

Unfortunately, this makes Deca Durabolin even more potent when it comes to contributing to prostate cancer because of its ability to increase hormone levels in the body.

Anabolic steroid statistics show that 18% of men have reported prostate complications due to steroid use.

Early detection is key to preventing more severe health complications; those using Deca Durabolin should have their PSA levels checked regularly and get their prostates examined for early signs of any changes in the glandular tissue.

As soon as any changes are detected, users should discontinue the use of DecaDurabolin immediately to decrease the further risk of developing prostate cancer and other health concerns associated with prolonged steroid usage.

4. Migraines

When it comes to Deca Durabolin, headaches are the most commonly reported side effect. These episodes of head pain may arise in the early stages of a cycle and can range from mild to moderate in intensity.

While they may not be alarming at first, it is important to pay attention to whether or not the severity of the headaches escalates over time; if so, it is best to cease use immediately and consult a healthcare practitioner for diagnosis and treatment.

With quick action, potential medical concerns like migraines can be managed with ease.

5. Bloating in the abdomen

Abdominal bloating is a common side effect associated with the usage of Deca Durabolin.

While it is usually mild and temporary, particularly at the start of a cycle, medical attention should be sought if the bloating persists and becomes severe.

It is important to monitor any additional medications or supplements that an individual is taking to ensure that these do not exacerbate the intensity of the bloating symptoms.

If prolonged or serious abdominal bloating occurs, immediately discontinue use and consult with a doctor before exploring alternative treatments.

6. Cramps in the legs

Leg cramps can be an unpleasant side effect of using Deca Durabolin, caused by sudden muscular contractions and a lack of blood flow to the muscles.

A potassium deficiency can exacerbate the problem, so for maximum comfort, take an over-the-counter potassium supplement to reduce the risk of recurrence.

This is especially important if you’re working out and need consistent performance from your muscles. With this added preventative measure, you can make sure nothing stands between you and achieving your goals.

7. Visible Retention of Fluid/Water

With the use of Deca Durabolin, it is possible to experience high levels of estrogen which can lead to fluid/water retention.

For this reason, those with higher doses of the anabolic steroid or those combining it with other steroids need to be especially vigilant that their testosterone-to estrogen-ratio stays balanced, as hormones fluctuate due to different cycles.

If you detect any signs of water retention such as puffiness in the face, abdominal bloating, and swelling ankles, an aromatase inhibitor like Arimidex or Aromasin can potentially help regulate these levels so that you avoid more serious health issues.

Being aware of your unique body chemistry and carefully monitoring your symptoms is a crucial part of safe steroid use.

8. Erectile Dysfunction (ED)

Erectile Dysfunction (ED) caused by the use of larger dosages of Deca Durabolin is a real health concern.

This is due to the lack of blood flow to the penis when using these higher doses.

However, there are safe and effective treatments available to help those suffering from ED due to Deca Durabolin usage.

These may include taking a phosphodiesterase inhibitor such as Viagra or Cialis.

To maximize one’s safety and avoid any further complications, it is important for anyone experiencing erectile dysfunction after Deca Durabolin usage to seek professional medical advice and discuss viable treatment options with their doctor.

9. Priapism

Priapism is a condition that is characterized by an unwanted, prolonged erection. This type of erectile dysfunction can be incredibly painful and if left untreated, dangerous.

If you are currently taking Deca Durabolin and experiencing this side effect, it’s important to seek medical attention immediately, as it poses serious health risks.

Furthermore, certain drugs such as cocaine or SSRIs can increase the risk of priapism; therefore, it’s best to try and avoid these substances when using steroids.

Additionally, combining steroids such as Nandrolone-Phenylpropionate or Trenbolone with Deca Durabolin increases the risk of experiencing these side effects even further; so caution should be exercised when utilizing multiple steroids concurrently.

10. Hypertension

Hypertension is a serious health concern and can cause major damage to the body if left long-term.

It is characterized by increased blood pressure which, when not managed properly, can lead to stroke, heart disease, and kidney disease.

Individuals who abuse Deca Durabolin may be at an increased risk of developing hypertension due to the drug’s ability to increase levels of erythropoietin.

This leads to thicker blood which puts extra strain on all vital organs in the body. For this reason, anyone taking Deca Durabolin must monitor their blood pressure closely for any potential changes and contact their doctor if necessary.

11. Sleeping Difficulties

Suffering through sleepless nights can be a grueling experience, especially when it is interrupted by a racing heart caused by Deca Durabolin usage.

To reduce or avoid this issue, it is important not to combine Deca Durabolin with other medications to prevent further agitation of the cardiovascular system and insomnia.

Stimulants should be avoided altogether as they can easily worsen the symptoms of difficulty sleeping.

If a person finds themselves struggling to fall asleep without stimulants present, they should speak with their healthcare provider before continuing the usage of Deca Durabolin.

12. Diarrhea

Taking Deca Durabolin can often lead to unpleasant and uncomfortable diarrhea.

If you experience this symptom after taking the supplement, it is best to stop using and take probiotics to restore balance in your digestive system.

However, if the symptoms persist or worsen after altering your routine, it is recommended that you seek medical attention immediately.

Doing so can help prevent further damage or health risks associated with diarrhea.

13. Virilism

Virilism is a common side effect of the anabolic steroid Deca Durabolin. It affects both men and women differently, yet equally.

Symptoms in men include increased production of sebum resulting in acne, and/or excess hair growth similar to facial hair.

Women may also experience these effects, but typically more severe symptoms occur including deepening voice pitch, clitoral enlargement, and amenorrhea.

How can Deca Durabolin side effects be avoided?

Avoiding Deca Durabolin side effects is possible, but requires dedication and an understanding of proper steroid usage.

Start by ensuring adequate hydration before and during your Deca Durabolin cycle, as dehydration is a common side effect.

Avoid drinking alcohol while on this or any other steroid cycle to maintain optimal organ function. Utilize post-cycle therapy supplements once the cycle is completed to restore hormone balance.

Make sure to keep your doses moderate and adhere to recommended dosage guidelines for best results.

Carry out regular checkups with your doctor while taking any type of steroid and consult an expert regularly to monitor effectiveness when using steroids for weight loss or muscle-building purposes.

Additionally, adjust your diet plan and workout routines if needed as well as increase protein intake for muscle growth and repair.

Following these steps can help you avoid unpleasant Deca Durabolin side effects while reaping maximum benefits from the cycle.

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Also, it encourages high-intensity workouts with quick recovery times, which is what every bodybuilder wants.

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Benefits of DecaDuro

  • Explosive power and strength for runners during competitions
  • Preserve lean muscle whilst reducing body fat
  • Relieve joint & tendon pain
  • Fast muscle recovery after grueling workouts

Additionally, DecaDuro offers joint and tendon pain relief due to its ability to strengthen these areas.

The best part regarding DecaDuro is the fact that it is made of 100% natural ingredients that are completely safe for your body and has no adverse side effects like its alternative.

This incredibly powerful supplement brings the most out of your workout sessions with maximal results!


Is Deca Durabolin safe?

Deca Durabolin is an anabolic steroid, so it can not be deemed entirely risk-free.

According to scientific studies, potential side effects may include water retention, hypertension, and even the potential for certain kinds of cancer.

For these reasons, it’s important to speak with your doctor before beginning a cycle of Deca Durabolin to reduce the risk of any unwanted or adverse reactions.

Is Deca Durabolin legal in the United States?

Deca Durabolin is a powerful anabolic steroid that is illegal in the United States.

Possession of this Schedule III controlled substance without a valid prescription carries serious penalties such as fines or imprisonment.

Beyond the legal ramifications, it has also been banned for use in sports and professional bodybuilding due to its numerous potential side effects.

These include high blood pressure, increased cancer risk, acne, liver problems, and more.

With the risks associated with Deca Durabolin use, avoiding ingestion of this product is the best practice for those living in the United States.

Is Deca Durabolin effective for joint pain?

Deca Durabolin has been proven to be an effective anabolic steroid for joint pain relief in both studies and reviews.

Nandrolone decanoate (Deca Durabolin) is one of the most popularly used steroids known to successfully relieve joint pain, with a significant improvement seen in reducing joint pain and increasing function noticed in patients with osteoarthritis of the knee.

The effects of this steroid have made it a renowned choice among medical professionals looking to treat those suffering from painful joints.

Can a doctor prescribe Deca Durabolin?

Deca Durabolin is a steroid that can have significant effects on the human body; therefore, it can only be obtained if a doctor prescribes it.

Though, there are several issues with getting Deca Durabolin due to its higher risk of side effects. Thus, bodybuilders who desire to use such medication should consider trying a safer and more accessible alternative, such as DecuDuro.

This legal and safe steroid does not require a prescription and is easier to obtain since no needles are involved.

With DecuDuro, users have access to all the benefits of Deca Durabolin without any of the risks associated with it.

Is Deca bad for your liver?

While Deca is an anabolic steroid commonly believed to be very safe for the liver, it can become toxic if taken in high doses or used for long periods.

Therefore, anyone considering the use of this drug should take caution and have their liver checked regularly by a physician.

Is Deca Durabolin a libido booster?

Deca Durabolin is popularly used by athletes and bodybuilders as a performance-enhancing drug, but it may also act as a libido booster in men.

While taking Deca Durabolin, some men report an increased frequency and urgency of sexual urges along with painful erections.

However, this side effect is not universal; many users don’t experience any changes in their libido while taking the drug.

Does Deca Durabolin cause hair loss?

Deca-Durabolin is often a subject of much debate when it comes to the potential for hair loss.

Thankfully, medical research has conclusively determined that this anabolic androgenic steroid does not have any direct effect on hair loss.

Studies have shown that it can even help guard against some forms of hair loss due to its ability to inhibit the enzyme 5-alpha reductase from converting testosterone into dihydrotestosterone (DHT).

By keeping DHT levels balanced and low, Deca-Durabolin may be an effective tool in preserving your existing hair.

Is Deca Durabolin an appetite stimulant?

Deca Durabolin is not an appetite-stimulant for most people, though factors like genetics, diet and dosage can cause some individuals to experience exaggerated hunger pangs.

That being said, it is still important to take heed when on any form of steroids and pay careful attention in case one begins to overeat.

Eating a lot of calories is necessary with Deca Durabolin if one hopes to see gains, so special cognizance should be taken when supplementation begins to properly fuel the journey ahead.

Does Deca Durabolin make you tired?

Deca Durabolin is a powerful anabolic steroid designed to increase testosterone levels in the body.

Generally, increases in testosterone can lead to feelings of tiredness or fatigue for some users, however, it is not guaranteed that everyone who uses Deca Durabolin will experience this side effect.

The degree of fatigue will vary from one individual to another too. If feeling excessively tired on account of Deca Durabolin, it may be useful to lower the dosage or discontinue use altogether.

Consequently, it is important to assess whether this side effect is occurring before continuing use.


Deca Durabolin is a popular anabolic steroid that unfortunately has serious side effects and should be avoided.

An excellent alternative to consider is CrazyBulk’s legal version, Decaduro. Formulated using only 100% natural ingredients, this supplement does not have the adverse health risks associated with Deca Durabolin.

Many users of Decaduro have seen incredible results such as increased lean muscle mass or reduced stubborn belly fat without compromising their health and safety.

This product is a safe and effective way to take advantage of Deca Durabolin’s benefits without getting any of the bad side effects.

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Hi, I'm Dave Moffat the founder and Chief Editor of steroidsourcetalk.com and certified International Personal Trainer and Certified Nutritionist. My passion has always been bodybuilding but with 15 years' experience in weight loss programs too, it's hard not to mention all that when you're working at your fitness level fullest (I hope). When Im not in the gym or spending time away from my family i often think about what advice would help others achieve theirs goals just like these inspired mine.