Levothyroxine

Description

Ingredients

The primary active ingredient in Levothyroxine is Levothyroxine Sodium, a synthetic thyroid hormone.

Inactive ingredients vary depending on the brand and formulation but may include:

• Lactose monohydrate
• Microcrystalline cellulose
• Croscarmellose sodium
• Magnesium stearate
• Colouring agents (if applicable)

It is crucial to check the patient information leaflet for a complete list of ingredients, especially if you have allergies.

Side Effects

While Levothyroxine is generally well-tolerated, some patients may experience side effects, especially if the dosage is incorrect. These can include:

• Nervousness or anxiety
• Headaches
• Palpitations or irregular heartbeat
• Insomnia
• Weight loss
• Increased sweating
• Diarrhoea

If you experience severe side effects or signs of an allergic reaction (e.g., rash, itching, swelling), seek medical attention immediately.

Warnings

1. Medical Conditions: Inform your doctor if you have a history of heart disease, diabetes, adrenal gland disorders, or osteoporosis, as Levothyroxine may interact with these conditions.
2. Levothyroxine is generally safe to use during pregnancy and breastfeeding, but only under medical supervision.
3. Drug Interactions: Certain medications (e.g., antacids, calcium supplements, and iron supplements) can interfere with Levothyroxine absorption. Maintain a gap of 4 hours between Levothyroxine and such medications.
4. Missed Dose: If you miss a dose, take it as soon as you remember. If it’s close to the time of your next dose, skip the missed dose. Do not double the dose.

How to Take

• Dosage: Always follow the prescribed dose from your doctor. Dosage varies depending on your age, weight, and thyroid function.
• Timing: Take Levothyroxine on an empty stomach, ideally 30–60 minutes before breakfast, with a full glass of water.
• Consistency: Take it at the same time every day to maintain steady hormone levels.

FAQs

How long does Levothyroxine take to work?

Levothyroxine may take several weeks to improve symptoms of hypothyroidism, but blood tests are often conducted after 6–8 weeks to check thyroid hormone levels.

Can I stop taking Levothyroxine once I feel better?

No, hypothyroidism is typically a lifelong condition, and abruptly stopping Levothyroxine without medical guidance can result in a recurrence of symptoms. Always consult your doctor before making any changes.

Can Levothyroxine cause weight changes?

Yes, some patients may notice weight changes. Levothyroxine helps regulate metabolism, which might lead to weight loss if you were gaining weight due to hypothyroidism.

Can I drink coffee after taking Levothyroxine?

We recommend waiting at least 30–60 minutes before consuming coffee or tea, as these can interfere with the medication’s absorption.

Is Levothyroxine gluten-free?

Many brands of Levothyroxine are gluten-free, but this can vary. Check with your pharmacist or review the medication leaflet for specific details.

What should I do if I take too much Levothyroxine?

An overdose can cause symptoms such as rapid heartbeat, chest pain, and tremors. Seek medical attention immediately if you suspect an overdose.