British Dragon Cytomel Tablets 100 tabs (50 mcg/tab) EXPIRATION

Liothyronine – Cytomel

Thyroid hormones, essential for our body’s metabolism, are naturally produced but also synthetically manufactured by many pharmaceutical companies. The two primary types are T4 (levothyroxine) and T3 (liothyronine), both synthesized and stored in the thyroid gland.

Pharmaceutical-grade thyroid hormone is sourced either from animal glands (bovine or ovine) or made synthetically. In the USA, iodine levels in these preparations are strictly regulated.

Cytomel (liothyronine sodium) is provided in tablet form or as a salt of a natural thyroid hormone. Notably, T3 is significantly more potent than T4.

Pharmacology

The mechanisms behind thyroid hormones are complex and not fully understood, though they play a crucial role in energy metabolism. These hormones boost the body’s consumption of carbohydrates, lipids, and proteins while enhancing oxygen uptake. Users typically experience a heightened basal metabolic rate, impacting almost all organs, including the brain. The significance of thyroid hormone is evident in patients with deficiencies.

Dosage

Thyroid hormone is readily absorbed from the stomach into the bloodstream, with effects kicking in within hours, though peak activity may take several days. The hormone remains accessible in the body for days due to its binding to albumin, which protects it from liver breakdown.

Key indications for thyroid hormone include:

• Replacement therapy for hypothyroidism
• Post-surgical replacement in thyroidectomized patients
• Treatment for goiters and thyroid nodules
• Diagnostic uses in suppression tests
• Alternative for those allergic to animal-derived hormones

Body Builders and Weight Loss

For years, athletes have misused thyroid hormones to shed pounds. Through fat and carbohydrate metabolism stimulation, Cytomel has been popular across various sports. Typically, it’s ingested for 4-6 weeks, ceasing a week before competitions. Its efficacy as a fat burner and performance enhancer is well-documented, albeit generally in tandem with other supplements.

Online sellers advise starting with 25 ug/day, gradually increasing by 5-10 ug/day. Maximum tolerable doses often reach up to 100 ug/day. Users should gradually taper off to prevent a state of thyroid insufficiency, owing to suppression of natural hormone production.

Consultation with a physician is crucial for those aiming to use thyroid hormones for weight loss.

Signs and Symptoms

• Headache
• Mood swings: irritability, anxiety
• Excessive sweating
• Irregular heart rhythms
• Palpitations
• Chest discomfort
• Diarrhea
• Menstrual changes
• Complications with heart failure
• Shock

Overdose can lead to severe complications resembling a thyroid storm, while chronic misuse may result in hyperthyroidism symptoms.

Contraindications

Thyroid hormone is contraindicated for individuals with untreated adrenal insufficiency or thyrotoxicosis, alongside any known hypersensitivity. True allergic reactions to liothyronine are exceedingly rare.

Precautions

Besides potential weight loss uses, thyroid hormone can exacerbate conditions like adrenal insufficiency, diabetes, and increase bleeding risk with anticoagulants. Claims surrounding infertility treatment lack scientific support.

Thyroid hormones carry significant risks, especially for those with heart issues; medical advice is paramount before commencing therapy.

Levels

Thyroid hormone levels can be tested easily, with all major sporting organizations, including the IOC and WADA, routinely monitoring athletes for these hormones.

Drug Interactions

Interactions may occur with:

• Oral anticoagulants
• Insulin or hypoglycemic agents
• Cholestyramine
• Estrogens and contraceptives
• Tricyclic antidepressants
• Digitalis

Physicians must monitor thyroid hormone dosages closely for all patients.

Treatment of Overdosage

In suspected overdose cases, hospitalization is essential. Halting the hormone and monitoring recovery, generally over 4-8 weeks, is standard practice. Supportive care is the primary management strategy, as there’s no specific antidote. Inducing vomiting is ill-advised due to aspiration risks. Comatose patients may need ventilatory support in ICU, while basic care will often suffice for most cases, with beta-adrenergic blockers used if needed.

Dosage Information

Liothyronine comes in tablet form, typically taken once daily. Dosage is tailored to hypothyroidism severity, starting at a minimal effective dose due to rapid action. Initial doses of 5 mcg/day should rise gradually, avoiding excessive increases, especially in those with existing heart conditions. Generally, doses between 50-75 ug/day are effective. Liothyronine also has an intravenous form for treating myxedema coma, a serious complication of hypothyroidism primarily affecting older women.

Liothyronine is available in 5, 25, and 50 ug tablet options, requiring a doctor’s prescription in the USA.