T4 (100 Tab)

Quick Overview

T4   Manufacturer: Unique Pharma Category: Oral Dose and quantity: 40 mcg/ml Package: 100 pills Form: Oral Active Substance: Thyroxine Active Half-Life: 6-7 days Classification: Synthetic thyroid hormone Dosage: 50-200 mcg a week Water retention: No Aromatizati ...
38.00 €
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Manufacturer: Unique Pharma

Category: Oral

Dose and quantity: 40 mcg/ml

Package: 100 pills

Form: Oral

Active Substance: Thyroxine

Active Half-Life: 6-7 days

Classification: Synthetic thyroid hormone

Dosage: 50-200 mcg a week

Water retention: No

Aromatization: No


Info: T4, or thyroxine, is a hormone produced by the thyroid gland that plays a crucial role in regulating the body's metabolism. In bodybuilding and fitness circles, T4 is sometimes used in an attempt to enhance fat loss and boost metabolism. T4 is often used in combination with other compounds, such as anabolic steroids, in an attempt to achieve a leaner and more defined physique. The idea is that by increasing the levels of T4 in the body, the metabolic rate could be increased, leading to greater calorie expenditure and potentially aiding in fat loss.


Increased Metabolism: T4 is a thyroid hormone that plays a key role in regulating metabolism. Some proponents believe that increasing T4 levels might lead to a higher metabolic rate, which could theoretically result in increased calorie burning and potential fat loss. However, the body's response to T4 can be complex and varies from person to person.

Enhanced Fat Loss: The increased metabolism associated with higher T4 levels could potentially lead to greater fat loss, which is a desired goal in bodybuilding and fitness. However, the actual impact on fat loss from T4 supplementation is uncertain and might not be significant enough to warrant its use.

Improved Energy Levels: Anecdotally, some individuals report feeling more energetic when using T4. This could be due to the potential influence of T4 on overall metabolic processes and energy production.

Possible Muscle Preservation: Some proponents suggest that T4 might help preserve lean muscle tissue during periods of calorie restriction or weight loss. This is important in bodybuilding to maintain a lean and muscular physique.

Adverse Effects: 

Hyperthyroidism: Taking T4 in excessive amounts can lead to hyperthyroidism, a condition where there is an excess of thyroid hormones in the body. This can result in symptoms such as rapid heart rate, palpitations, excessive sweating, anxiety, nervousness, and restlessness.

Heart Complications: Hyperthyroidism caused by excessive T4 use can put a strain on the heart, potentially leading to irregular heartbeats, high blood pressure, and an increased risk of cardiovascular issues.

Bone Health: Chronic hyperthyroidism from high T4 levels can affect bone health by reducing bone density, increasing the risk of osteoporosis, and making bones more susceptible to fractures.

Muscle Weakness: Elevated thyroid hormone levels can lead to muscle weakness and fatigue, which can impact physical performance and overall quality of life.

Weight Loss and Muscle Wasting: While weight loss might be a desired outcome in some cases, excessive T4 use can lead to rapid and unhealthy weight loss, often accompanied by muscle wasting. This is not a sustainable or healthy way to achieve fitness goals.

Thyroid Dysfunction: Manipulating thyroid hormones can disrupt the body's natural thyroid function, potentially leading to long-term thyroid dysfunction. This can result in a host of health issues, including metabolic imbalances.

Insomnia: High levels of thyroid hormones can interfere with sleep patterns and lead to insomnia or disrupted sleep.

Anxiety and Nervousness: Excessive thyroid hormones can lead to heightened feelings of anxiety, nervousness, and even panic attacks.

Tolerance and Dependence: The body can develop tolerance to thyroid hormones over time, requiring higher doses to achieve the same effects. This can lead to a cycle of increasing dosages, which increases the risk of adverse effects.

Suppression of Natural Thyroid Function: Using T4 externally can signal the body to produce less of its own thyroid hormones, further disrupting the natural balance of thyroid function.

Dosage and Duration: 

For most bodybuilders it's advisable to exercise caution and initiate with a modest dosage of around 50 micrograms (mcg) per day. Gradually augment the dosage by about 50 mcg every 5 to 6 days. It's important not to surpass the range of 100 to 200 mcg daily. In cases where multiple tablets are taken in one day, distribute them evenly throughout the day, such as 200 mcg, which is equivalent to two doses of 100 mcg, each administered at regular intervals.

The T4 cycle, involving doses of 100 to 200 mcg, is typically adhered to for a duration of six to eight weeks. It's imperative to ensure that the correct dosage aligns with your age and gender to maintain optimal consumption.

Combination with Other Drugs:

T4 is sometimes used in combination with other substances, such as anabolic steroids, to potentially enhance their effects on body composition.

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