Sustalad 250 mg/ml (Sustanon) 10ml Vials

Description

Testosterone is the primary sex hormone in humans, essential for the development of male and female reproductive tissues and secondary sexual characteristics such as increased muscle and bone mass, body hair growth, and overall well-being. In men, insufficient testosterone levels can lead to issues like frailty and bone loss. Testosterone has pronounced anabolic properties, enhancing muscle mass, accelerating protein synthesis, improving recovery rates, and increasing glycogen supply in muscles. This hormone regulates numerous bodily processes and is vital for both elderly individuals with age-related hypogonadism and athletes using steroids.

Mechanism of Action

Testosterone binds to androgen receptors and serves as a precursor to dihydrotestosterone (DHT), a more biologically active androgen formed through 5α-reduction. DHT has a five-fold greater binding affinity to androgen receptors. These hormones induce structural changes in the receptor, transmitting signals to the cell nucleus, where androgenic effects are realized by modulating specific DNA genes. Testosterone can also convert to estrogen via aromatase, predominantly affecting the hypothalamus-pituitary-testes axis and suppressing endogenous testosterone secretion when exogenous drugs are administered.

Medical Use

Testosterone is listed as an essential medicine by the World Health Organization, emphasizing its importance as a vital hormone rather than merely an anabolic steroid for muscle growth. It treats conditions like gender dysphoria, male hypogonadism, and certain types of breast cancer. As testosterone levels naturally decline with age, hormone replacement therapy (HRT) or testosterone replacement therapy (TRT) helps maintain overall health and quality of life. HRT sustains testosterone levels within the normal range and supports cognitive functions such as mood, spatial ability, attention, and memory. Low testosterone levels may be a risk factor for cognitive decline and Alzheimer's disease.

Testosterone for Seniors

Men over 35 experiencing diminished well-being are often advised to check their blood testosterone levels. If levels fall below 12 nmol/L, hormone replacement therapy is recommended. This can improve body composition by increasing lean mass and reducing fat, revitalizing sexual function, and counteracting the negative effects of androgen deficiency. Monitoring lipid profiles, clinical blood parameters, estradiol, and prolactin levels is crucial. Natural gonadotropin production declines during HRT, requiring specific therapy involving gonadotropins for those aiming to conceive. Dosage selection should be guided by healthcare professionals, considering normal testosterone levels, current levels, body weight, body fat percentage, SHBG levels, and aromatization. Replacement therapy dosages are generally lower than those used by athletes, typically ranging from 50-200 mg per week.

Testosterone in Sports

Testosterone's primary advantage in sports is its ability to increase muscle mass and strength. It exhibits strong anabolic and androgenic properties. Androgens enter cells, interact with androgen receptor (AR) proteins, and induce conformational changes that activate the AR, allowing it to bind to DNA and regulate gene expression. Rapid weight gain from testosterone use is often due to water retention via sodium retention and estrogenic effects. Testosterone alleviates joint problems and enhances the body's regenerative processes, overall energy levels, and exercise motivation. It prevents overtraining, increases oxygen capacity and nitric oxide production, and improves training pumps. Recommended dosages for athletes range from 250-500 mg per week, adjusted based on body weight, with cycles lasting 8-10 weeks followed by a post-cycle therapy period of 2-3 weeks. Professional athletes may use up to 2000 mg per week, but higher dosages increase side effects. Monitoring estradiol levels and using aromatase inhibitors under medical supervision can mitigate estrogenic side effects.

Testosterone Mix

Testosterone Mix combines various testosterone forms with different absorption rates, maintaining elevated anabolic hormone levels in the blood for nearly a month. Frequent injections are unnecessary, with medical administration typically once every three weeks. For muscle-building, weekly injections are needed. Some athletes mistakenly believe that Testosterone Mix combines different courses in one bottle, but each component converts into testosterone in the body.

Dosages

• Beginner: 250 mg per week
• Average Dosage: 300-750 mg per week
• High Dosage: 750+ mg per week

Effects

• Increased muscle mass
• Development of male genital organs and secondary sexual characteristics
• Promotes spermatogenesis and male behaviors
• Fat burning
• Increased strength
• Enhanced libido
• Reduced blood cholesterol levels
• Lowered risk of heart ischemia and coronary heart disease
• Stimulation of erythropoiesis and male-like distribution of subcutaneous fatty tissue
• Influences nitrogen and phosphorus metabolism

Side Effects

• Increased blood pressure
• Heightened sexual behavior
• Hemoconcentration (blood clotting)
• Possibility of blood clots in arterial and venous vessels
• Water retention (edema)
• Masculinization effects
• Aggression, agitation, irritability
• Alopecia (scalp baldness)
• Acne
• Insomnia (rare)

Profile

• Half-life: 7-15 days
• Injection Frequency: Every 4-7 days
• Pharmaceutical Form: Oily solution for intramuscular injection

Contraindications

• Pregnancy
• Known or suspected carcinoma of the prostate or breast
• Breastfeeding
• Hypersensitivity to the active substance or any of the excipients

Storage

• Keep out of reach of children
• Store in a cool, dry place away from direct sunlight
• Store at room temperature
• Do not use after the expiry date