Levotiron, the brand name for the generic drug levothyroxine, is a prescription synthetic thyroid hormone indicated to alleviated symptoms in patients with hypothyroidism, a medical condition in which the body produces unusually low levels of thyroid hormones. Levotiron is marketed under the brand name Synthroid in the United States. Patients with hypothyroidism who take Levotiron rarely experience side effects, but should nonetheless discuss Levotiron side effects with a doctor before beginning treatment with this medication.
Allergic Reaction
Patients can experience an allergic reaction to Levotiron upon first usage. Symptoms associated with an allergic reaction to this medication include skin rash, itching, chest pain or tightness, vocal hoarseness, breathing difficulties or facial swelling, explains Drugs.com. Patients who develop these allergic reaction side effects after taking a dose of Levotiron require emergency medical attention. Without prompt medical care, these side effects can be life-threatening.
Hair Loss
During the first month of Levotiron treatment, patients can experience temporary hair loss from the scalp, reports MedlinePlus. Hair loss symptoms occur most frequently in children. This side effect of Levotiron is temporary and typically resolves with continued use of this medication.
Overstimulation or Overdose
Patients who take an unusually high dose of Levotiron can experience overstimulation or overdose side effects that mimic the symptoms of hyperthyroidism, a condition in which the body produces too much thyroid hormone. These overstimulation side effects can include fatigue, heart rate or breathing changes, sweating, appetite alterations, abdominal cramping, mood abnormalities, heat intolerance, stomach upset or headache, explain health professionals with PDRHealth. Female patients who take too much Levotiron can also develop menstrual cycle irregularities. Patients who experience any of these serious side effects of Levotiron should seek prompt medical care.
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