Intex Pharma Mast P-100 (Drostanolone Propionate): Uses, Effects, Side Effects, and Safety Guide

Intex Pharma Mast P-100 (Drostanolone Propionate)

Intex Pharma Mast P-100 is marketed as an injectable anabolic-androgenic steroid (AAS) containing drostanolone propionate, commonly known as Masteron.

General product information:

• Product Name: Intex Pharma Mast P-100
• Active Ingredient: Drostanolone Propionate (as marketed)
• Strength: 100mg/ml (as marketed)
• Dosage Form: Injectable oil solution
• Drug Class: Androgenic anabolic steroid (AAS)

Drostanolone propionate is a synthetic androgen derived from dihydrotestosterone (DHT). Historically, it was used medically in certain cases of advanced breast cancer, although modern clinical use has declined.

Products obtained outside regulated pharmaceutical supply chains may vary in authenticity, concentration, sterility, and manufacturing quality.

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What Is Intex Pharma Mast P-100?

Intex Pharma Mast P-100 is marketed as an injectable preparation containing drostanolone propionate, a short-acting ester of drostanolone.

General product details:

• Compound: Drostanolone Propionate
• Common Name: Masteron, Mast P
• Strength: 100mg/ml
• Administration: Intramuscular injection

Drostanolone propionate is a DHT-derived anabolic steroid that binds to androgen receptors and produces androgenic and anabolic effects.

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What Is Drostanolone Propionate (Masteron)?

Drostanolone propionate is a synthetic anabolic-androgenic steroid related to dihydrotestosterone (DHT).

It is characterized by:

• Androgen receptor activity
• DHT-derived structure
• Lack of conversion into estrogen through aromatase
• Injectable administration

Because it is a DHT derivative, drostanolone does not aromatize into estrogen. However, it can still affect natural hormone balance and overall health.

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How Does Drostanolone Propionate Work?

After injection, the propionate ester is gradually broken down, releasing active drostanolone.

The compound interacts with androgen receptors, influencing processes involved in:

• Protein synthesis
• Nitrogen retention
• Muscle metabolism
• Development and maintenance of androgen-related characteristics

Drostanolone’s medical effects were historically linked to its ability to interact with hormone-sensitive tissues, including certain breast cancer cells.

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Medical Background of Drostanolone

Drostanolone propionate was historically used as an antineoplastic (anti-cancer) hormone therapy, particularly for certain cases of advanced breast cancer.

Its use declined as newer treatments became available, including therapies that more specifically target hormone pathways.

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Mast P-100 in Fitness and Bodybuilding Discussions

Drostanolone propionate is frequently discussed in bodybuilding communities because of associations with:

• Lean muscle appearance
• Reduced water retention compared with some estrogenic steroids
• Increased muscle hardness
• Strength improvements

These uses are generally outside approved medical indications and may carry health risks. Reports from online communities are based on personal experiences and are not a substitute for clinical evidence.

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Hormonal Effects

Like other anabolic-androgenic steroids, drostanolone may affect the body’s endocrine system.

Potential hormonal effects include:

• Suppression of natural testosterone production
• Reduced LH and FSH levels
• Fertility changes
• Libido changes
• Hormonal imbalance

Recovery after hormonal suppression varies between individuals.

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Cardiovascular Considerations

Anabolic-androgenic steroids may influence cardiovascular risk factors.

Potential concerns include:

• Reduced HDL (“good”) cholesterol
• Increased LDL (“bad”) cholesterol
• Increased blood pressure
• Changes in cardiovascular risk markers

Long-term effects depend on factors such as genetics, duration of exposure, and overall health.

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Possible Side Effects

Potential side effects associated with drostanolone propionate may include:

• Acne
• Oily skin
• Hair loss in genetically susceptible individuals
• Mood changes
• Increased body or facial hair
• Hormonal suppression
• Changes in cholesterol levels

Women exposed to androgenic steroids may experience:

• Voice deepening
• Increased facial or body hair
• Menstrual changes
• Clitoral enlargement

Some androgenic effects may be permanent.

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Injection-Related Considerations

Injectable products may involve risks including:

• Injection-site pain
• Swelling
• Irritation
• Infection
• Contamination

Sterility and manufacturing quality are important factors for injectable medications.

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Product Quality Considerations

Products obtained outside regulated pharmaceutical systems may vary in:

• Active ingredient accuracy
• Sterility
• Purity
• Manufacturing standards
• Batch consistency

Potential concerns include:

• Counterfeit products
• Incorrect labeling
• Contamination
• Inaccurate concentration claims

Independent verification is important because underground-market products may not follow pharmaceutical manufacturing standards.

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Storage Recommendations

Injectable products should generally be stored:

• According to manufacturer instructions
• Away from direct sunlight
• At appropriate temperatures
• In original packaging
• Out of reach of children

Do not use products with:

• Damaged packaging
• Visible particles
• Unusual discoloration
• Expired labeling

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Frequently Asked Questions

What is Intex Pharma Mast P-100?

It is marketed as an injectable drostanolone propionate product containing 100mg/ml.

Is Mast P-100 the same as Masteron?

Masteron is a well-known name associated with drostanolone propionate products.

Is drostanolone a testosterone product?

No. Drostanolone is a synthetic DHT-derived anabolic steroid and is chemically different from testosterone.

Does drostanolone convert into estrogen?

No. Drostanolone does not aromatize into estrogen because it is a DHT derivative.

Is Mast P-100 a dietary supplement?

No. Drostanolone propionate is an anabolic-androgenic steroid medication and is not a dietary supplement.

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Final Thoughts

Intex Pharma Mast P-100 (Drostanolone Propionate) is marketed as an injectable Masteron-type anabolic steroid product. Drostanolone propionate has historical medical use as a hormone-based treatment for certain breast cancer cases but is now more commonly associated with non-medical performance-enhancing use.

Because drostanolone can affect hormone production, cholesterol levels, cardiovascular health, and fertility, understanding its potential risks and the importance of product quality is essential.

Disclaimer: This article is provided for educational and informational purposes only. It is not medical advice and should not replace consultation with a qualified healthcare professional.