Synthroid T4 - Levothyroxine Sodium

• Classification: Synthetic T4 thyroid hormone
• Standard: Tetraiodothyronine Sodium
• Estrogenic Activity None
• Progestational Activity None
• Water Retention: None
• Aromatization: None
• Hepatotoxicity None
• Recommended Dosage: 150-300 mcg/day

Whhat is Synthroid T4

Synthroid T4 is the first synthetic thyroid compound that was developed in late1950's. Synthroid T4 is FDA approved and accepted worldwide in clinical medicine, bodybuilding, and other sports. In clinical medicine, Synthroid T4 is the most prescribed medication for treating thyroid hormones insufficiency, called hypothyroidism. Athletes and bodybuilders widely use T4 for its ability to significantly boost metabolic rate and initiate lipolysis.

Thyroid Physiology 

Here's Synthroid (t4) mechanism of action and how does it affect thyroid function, step by step:

1. Hypothalamus releases thyrotropin-releasing hormone (TRH);
2. Thyrotropin-releasing hormone (TRH) stimulates the pituitary gland to release thyroid-stimulating hormone (TSH);
3. TSH stimulates the thyroid to produce thyroid hormones T4 and T3.

Thyroid Hormones T4/T3

Thyroid hormones Triiodothyronine (T4) and Thyroxine (T3) are responsible for multiple processes in the body, such as:

• Energetic metabolism and fluid balance;
• Utilization of protein by the body;
• Utilization of carbs and fat by the body;
• Linear growth and thermogenesis;
• Nervous and cardiovascular systems;
• Hepatic metabolism of nutrients and micronutrients.

Thyroid hormones T4 and T3 insufficiency lead to weight gain, energy loss, lethargy, hair loss, and worsening of skin texture.

How to Use Synthroid T4 in Bodybuilding

Bodybuilders use Synthroid T4 for metabolic rate stimulation and body fat breakdown.

• Recommended dosage — 150-300 mcg/day
• Cycle Lenght — 6-8 weeks

Please note: we strongly do not recommend starting Synthroid T4 or any other thyroid drugs at high dosages. Synthroid T4 is a potent hormon al compound, and it is strongly advised to give your body some time to adjust to exogenous Synthroid T4. The best practice is to start at 75 mcg/day and gradually increase the dosage by 75 mcg every day. We do not recommend exceeding a 300 mcg/day dosage.

Clenbuterol and Ketotifen Cycle with Synthroid T4 for Men

For this cycle you need: 

• Clenbuterol
• Ketotifen
• T4 Synthroid

Primary Goals:

• Weight loss
• Muscle definition

Level: Beginner/Intermidiate

Cycle Efficiency Ratio: High

Metabolic Rate Increase: 20%-30%

Clenbuterol Ketotifen and T4 Protocol 

• Days 1-3 — Clen 40mcg/day, Synthroid T4 150 mcg/day;
• Days 4-7 — Clen 60mcg/day, Synthroid T4 300 mcg/day;
• Days 8-14 — Clen 80mcg/day, Synthroid T4 300 mcg/day;
• Days 14-28 — Clen 120mcg/day, Ketotifen 2mg/day, Synthroid T4 150 mcg/day.

Please note: clen and Ketotifen only Cycle provides a Metabolic Rate Increase of 10%-15%

Clenbuterol and Ketotifen Cycle with Synthroid T4 for Women

For this cycle you need: 

• Clenbuterol
• Ketotifen
• T4 Synthroid

Primary Goals:

1. Fat burning
2. Dry muscle mass

Level: Beginner/Intermidiate

Cycle Efficiency Ratio: High

Metabolic Rate Increase: 20%-30%

Clenbuterol Ketotifen and T4 Protocol for Women

• Days 1-3 — Clen 40mcg/day, Synthroid T4 75 mcg/day;
• Days 4-7 — Clen 60mcg/day, Synthroid T4 150 mcg/day;
• Days 8-14 — Clen 80mcg/day, Synthroid T4 150 mcg/day;
• Days 14-28 — Clen 100mcg/day, Ketotifen 1mg/day, Synthroid T4 75 mcg/day.

Synthroid T4 and HGH

The prolonged intake of HGH (Human Growth Hormone) at dosages above 4IU/day can affect the thyroid gland and cause hyperglycemia. We strongly recommend adding 75-150 mcg/day of Synthroid T4 into your HGH cycle to avoid adverse side effects of HGH on the thyroid gland.