Thyrox 25 mcg Tablet contains Levothyroxine Sodium, a synthetic thyroid hormone used primarily to treat hypothyroidism (an underactive thyroid gland).Mechanism & PurposeSynthetic Hormone: It replaces or supplements the natural thyroxine ($T_4$) hormone that your thyroid gland fails to produce in sufficient quantities.Metabolism Regulation: Restoring normal hormone levels helps regulate the body's energy consumption, metabolism, body temperature, and overall physical and mental growth.Usage GuidelinesTiming: Usually taken orally once daily on an empty stomach, typically 30 to 60 minutes before breakfast, with a full glass of water.Consistency: Best taken at the exact same time every day for stable hormone levels in the bloodstream.Long-term Treatment: Hypothyroidism is generally a chronic condition, meaning this medication is often required long-term or lifelong. Regular blood tests (such as TSH levels) are necessary to monitor and adjust the dosage.Common Side EffectsWhen taken at the correct prescribed dose, side effects are rare. However, signs of an overdose or excessive dosage (hyperthyroidism symptoms) include:Rapid or irregular heartbeat (palpitations)Chest pain or shortness of breathTremors or shaking handsWeight loss, increased appetite, or sweatingNervousness, anxiety, or trouble sleepingImportant PrecautionsDo not alter your dose or stop taking the medication without consulting your doctor, as hormone levels fluctuate gradually.Inform your physician if you are pregnant, planning a pregnancy, or breastfeeding, as thyroid hormone requirements often change during pregnancy.What specific information or concerns do you have regarding your prescription for Thyrox