Description

🧬 What is Liothyronine? Liothyronine sodium is a synthetic form of triiodothyronine (T3) — a powerful thyroid hormone that regulates metabolism , energy levels , and body temperature . It is used medically to treat hypothyroidism and thyroid hormone resistance , and is also popular in fitness/bodybuilding communities to enhance fat loss and boost metabolic rate . Brand name: Cytomel Form: Oral tablets (commonly 25 mcg) ⚙️ How Liothyronine Works Liothyronine mimics the natural T3 thyroid hormone , which is the active form of thyroid hormone (more potent than T4). T3 increases the metabolic activity of cells, promoting: 🔥 Faster fat oxidation (fat burning) ⚡ Higher energy expenditure 💪 Improved protein synthesis (at low doses) 📉 Reduced body fat, especially in cutting cycles 💊 Common Dosage Use Case Typical Dose Hypothyroidism 25–75 mcg/day Fat loss (bodybuilding) 12.5–50 mcg/day, short-term Stacking Often combined with Clenbuterol or anabolic steroids Cycle Duration: 4–6 weeks (for fat loss or contest prep) Note: Dosage should be tapered to avoid thyroid suppression. ✅ Benefits of Liothyronine Increases basal metabolic rate (BMR) Promotes weight and fat loss Enhances energy and thermogenesis Used in cutting cycles by bodybuilders and athletes Treats thyroid-related fatigue , brain fog, and weight gain ⚠️ Side Effects Rapid heartbeat or heart palpitations Muscle loss at high doses without anabolic support Thyroid suppression if abused or not tapered off Insomnia , anxiety, or sweating Long-term misuse can lead to permanent thyroid damage 🧪 Form & Administration 💊 Oral tablet Usually sold in 25 mcg tablets Doses split throughout the day to mimic natural hormone rhythms 📦 Available Dosages 5 mcg (rare) 25 mcg (common) 50 mcg (less common, high dose)