Levothyroxine, while generally safe and effective, can cause side effects. Common side effects include headache, nervousness, irritability, insomnia, and increased sweating. Less common, but still possible, are palpitations, tremors, and weight loss or gain. These usually lessen or disappear as your body adjusts to the medication, but inform your doctor immediately if they’re severe or persistent.
Medication Interactions
Certain medications can interfere with levothyroxine absorption. For example, antacids, calcium supplements, iron supplements, and some medications containing aluminum or magnesium can reduce levothyroxine’s effectiveness. Taking levothyroxine at least four hours before or after these medications is recommended. Soy products can also affect absorption; consider minimizing their consumption around the time you take your medication. Discuss all your medications, including over-the-counter drugs and supplements, with your doctor or pharmacist to prevent potential interactions.
Food Interactions
High-fiber foods can also impact absorption. Consistency in timing your medication relative to meals may be beneficial. Consult your doctor for personalized advice on timing.
Other Considerations
Always inform your physician of any changes in your health. Regular blood tests monitor your thyroid hormone levels, ensuring the dose remains appropriate. This allows for prompt adjustments if needed. Failure to report symptoms or interact with your healthcare provider risks suboptimal treatment.
