Levotiroxina Teva

Levothyroxine, the active ingredient in Levotiroxina Teva, is a Thyroid hormone presented as an oral tablet for oral use. It replaces deficient thyroid hormone and restores normal metabolic activity in patients with hypothyroidism and related conditions.

GNH USA supplies Levotiroxina Teva as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Levotiroxina Teva provides thyroid hormone replacement for disorders of thyroid hormone deficiency. - Hypothyroidism: restores normal thyroid hormone levels and metabolic function. - Thyroid hormone replacement after thyroidectomy: supplies the hormone that the removed gland would have produced. - Goiter: reduces gland enlargement by normalising circulating hormone levels. - Congenital hypothyroidism: supplies essential hormone to infants with absent or insufficient thyroid function.

Levotiroxina Teva may cause a range of adverse reactions, most of which are dose‑related and reversible upon adjustment.

Common Side Effects: - Headache: mild to moderate intensity. - Fatigue or weakness: especially during dose titration. - Palpitations: sensation of rapid or irregular heartbeat. - Weight loss: due to increased metabolic rate. - Gastrointestinal upset: nausea, vomiting or abdominal discomfort. - Insomnia: difficulty falling or staying asleep.

Serious or Rare Side Effects: - Cardiac arrhythmias: especially in patients with pre‑existing heart disease. - Osteoporosis: prolonged excess dosing may reduce bone density. - Hyperthyroidism symptoms: tremor, heat intolerance, anxiety. - Allergic reactions: rash, pruritus, angioedema. - Myocardial infarction: rare, associated with overtreatment. - Severe bone fractures: linked to long‑term overtreatment.

Levotiroxina Teva requires careful monitoring and individualized dosing. - Dose adjustment: titrate based on thyroid function tests and clinical response. - Cardiovascular disease: use cautiously in patients with angina, arrhythmias or recent myocardial infarction. - Elderly patients: start with lower doses to avoid overtreatment. - Pregnancy and lactation: assess risk‑benefit; dose may need adjustment. - Drug interactions: review concomitant medications that affect thyroid hormone levels. - Store at ambient temperature: keep below 25 °C, in the original container, protected from moisture and light.

Levotiroxina Teva can interact with several medicines that alter its absorption or metabolism.

Major Interactions (Avoid): - Levothyroxine with calcium or iron supplements: markedly reduces absorption; separate administration by at least 4 hours. - Levothyroxine with antacids containing aluminum or magnesium: significantly impairs absorption; avoid concurrent dosing. - Levothyroxine with amiodarone: may cause thyroid dysfunction; monitor thyroid function closely.

Moderate Interactions (Monitor Closely): - Levothyroxine with warfarin: may enhance anticoagulant effect; check INR regularly. - Levothyroxine with carbamazepine, phenytoin, or rifampin: increase metabolism leading to reduced efficacy; adjust dose as needed. - Levothyroxine with estrogen therapy or oral contraceptives: may increase thyroid‑binding globulin, requiring dose adjustment.