Levo-4

Levothyroxine sodium, the active ingredient in Levo-4, is a thyroid hormone presented as an oral tablet for oral use. It replaces deficient thyroid hormone and is used to treat hypothyroidism and related thyroid disorders in adults and children. The medication helps normalize metabolic activity and supports normal growth and development.

GNH USA supplies Levo-4 as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, with consistent quality and regulatory compliance.

Levo-4 (levothyroxine sodium) acts on the thyroid hormone pathway to restore normal hormone levels.

- Hypothyroidism: restores normal thyroid hormone levels, relieving fatigue, weight gain, and cold intolerance. - Thyroid hormone replacement therapy: provides consistent hormone replacement after thyroidectomy or radioactive iodine treatment. - Goiter: reduces thyroid-stimulating hormone drive, helping to shrink an enlarged thyroid gland.

Levo-4 may cause a range of adverse reactions. Patients should be aware of both common and serious possibilities.

Common Side Effects: - Headache: mild to moderate discomfort. - Insomnia: difficulty falling or staying asleep. - Palpitations: sensation of rapid or irregular heartbeat. - Increased appetite: may lead to weight fluctuations.

Serious or Rare Side Effects: - Cardiac arrhythmia: abnormal heart rhythm that may require medical attention. - Angina pectoris: chest pain due to reduced coronary blood flow. - Severe allergic reaction: rash, itching, swelling, or difficulty breathing.

Before initiating therapy, certain precautions should be considered.

- Dose adjustment: required in elderly patients or those with cardiovascular disease. - Monitor thyroid function: periodic TSH testing to ensure appropriate dosing. - Avoid abrupt discontinuation: may precipitate hypothyroid symptoms. - Pregnancy: use only if the potential benefit justifies the potential risk to the fetus. - Store at ambient temperature: keep in the original container, protect from moisture and light.

Levo-4 can interact with several medicines, affecting its efficacy or safety.

Major Interactions (Avoid): - Amiodarone: may cause excess thyroid hormone levels. - Warfarin: levothyroxine can increase anticoagulant effect, raising bleeding risk. - Lithium: may reduce levothyroxine effectiveness, leading to inadequate hormone replacement.

Moderate Interactions (Monitor Closely): - Calcium supplements or iron salts: decrease levothyroxine absorption. - Antacids containing aluminum or magnesium: reduce absorption when taken concurrently. - Cholestyramine: may lower levothyroxine serum concentrations.