How does levothyroxine compared to synthroid

buy now

Have you ever wondered how levothyroxine compares to Synthroid in treating hypothyroidism? With its identical active ingredient, Levothyroxine is just as effective as the brand-name Synthroid but at a more affordable price. Make the switch today and experience the same powerful results without breaking the bank!

Overview of Levothyroxine

Levothyroxine is a synthetic thyroid hormone that is used to treat hypothyroidism, a condition where the thyroid gland does not produce enough thyroid hormone. It is also used to treat goiter (enlarged thyroid gland) and certain types of thyroid cancer.

Levothyroxine works by replacing the thyroid hormone that your body is not producing enough of. It helps to restore normal thyroid hormone levels in the body, which can help to alleviate symptoms such as tiredness, weight gain, and depression.

How Levothyroxine Works

Levothyroxine is taken orally and is absorbed through the gastrointestinal tract. It is then converted into its active form, T3 (triiodothyronine), in the liver and other tissues. T3 is the hormone that is responsible for regulating the body’s metabolism, energy production, and growth.

It is important to take levothyroxine exactly as prescribed by your healthcare provider, as the dosage may vary depending on your individual needs. It is usually taken once a day on an empty stomach, at least 30 minutes before eating.

Differences between Levothyroxine and Synthroid

When comparing Levothyroxine and Synthroid, it’s essential to understand that they are both medications used for treating hypothyroidism, but there are some key differences:

  • Brand Names: Levothyroxine is the generic name for the medication, while Synthroid is a brand name version of levothyroxine.
  • Manufacturers: Levothyroxine is produced by multiple pharmaceutical companies, leading to variations in formulations and inactive ingredients, while Synthroid is manufactured by AbbVie, ensuring consistency in the product.
  • Pricing: Due to the brand name association, Synthroid is often more expensive than generic levothyroxine, making it less cost-effective for some patients.
  • Potency: Some patients report differences in how they respond to levothyroxine and Synthroid, indicating that potency and effectiveness may vary for individuals.
See also  How to take levothyroxine and alendronate

These differences highlight the importance of discussing with your healthcare provider which medication may be the best option for you based on factors such as cost, availability, and personal response to the medication.


Active Ingredients: Levothyroxine contains only one active ingredient, which is levothyroxine sodium. Synthroid, on the other hand, also contains levothyroxine sodium as its active ingredient.

Branding: Levothyroxine is commonly available as a generic drug, while Synthroid is the brand name version of levothyroxine.

Color and Shape: Levothyroxine tablets may come in different colors and shapes based on the manufacturer, while Synthroid tablets are typically round and color-coded based on dosage strength.

Pricing: Generic levothyroxine is generally more cost-effective compared to the brand-name Synthroid, making it a more affordable option for those who need thyroid hormone replacement therapy.

Availability: Generic levothyroxine is widely available in pharmacies, while Synthroid may require a prescription and can be more limited in availability depending on the country or region.

Active Ingredients Comparison

Levothyroxine and Synthroid both contain the same active ingredient, which is levothyroxine sodium. Levothyroxine is a generic medication, while Synthroid is a brand-name drug. The active ingredient in both medications works by replacing or providing thyroid hormone that is normally produced by the thyroid gland. This helps to regulate energy levels and metabolism in the body.

Levothyroxine and Synthroid are available in various strengths and forms, including tablets and oral solutions. The active ingredient in both medications is identical, so their effectiveness in treating hypothyroidism is generally the same. However, some patients may have slight variations in how they respond to generic versus brand-name medications.

See also  Levothyroxine 150mcg

Effectiveness Comparison

When comparing the effectiveness of levothyroxine and Synthroid, it is important to consider that both medications are synthetic forms of the thyroid hormone thyroxine (T4). They are primarily used to treat hypothyroidism, a condition where the thyroid gland does not produce enough hormones to regulate the body’s metabolism.

Studies have shown that in most cases, there is no significant difference in the effectiveness of levothyroxine and Synthroid in treating hypothyroidism. Both medications are generally well-tolerated and can help alleviate the symptoms of an underactive thyroid, such as fatigue, weight gain, and depression.

However, there are some individuals who may respond better to one medication over the other due to differences in how their bodies metabolize and absorb the drugs. It is essential to work closely with your healthcare provider to determine the most effective treatment option for your specific needs.

Levothyroxine Side Effects

Levothyroxine Side Effects

Levothyroxine, like any medication, can cause side effects. Common side effects of levothyroxine include:

  • Nervousness: Some people may experience feelings of nervousness or anxiety when taking levothyroxine.
  • Palpitations: Rapid or irregular heartbeat can occur as a side effect of levothyroxine.
  • Weight Loss: Some individuals may experience weight loss while taking levothyroxine.
  • Headache: Headaches are a possible side effect of levothyroxine.
  • Tremors: Shaking or tremors in the hands or body may occur with levothyroxine use.

It’s essential to discuss any side effects you experience with your healthcare provider, as they can help determine the best course of action for managing them.

Levothyroxine Side Effects

Levothyroxine, like any medication, may cause side effects in some individuals. Common side effects of levothyroxine include:

  • Headache
  • Nervousness
  • Insomnia
  • Increased heart rate
  • Tremors
  • Sweating
  • Increased appetite
  • Weight loss
  • Diarrhea
  • Menstrual irregularities in women
See also  Drug interaction warfarin levothyroxine

If you experience any of these side effects while taking levothyroxine, it is important to consult with your healthcare provider. In some cases, adjusting the dosage or switching to a different medication may help alleviate these side effects.

Synthroid Side Effects

Synthroid, like any medication, can cause side effects in some individuals. It is essential to be aware of the potential adverse effects that may occur while taking this medication. Common side effects of Synthroid include:

Mild Side Effects:

Mild Side Effects:

1. Nausea

2. Headache

3. Diarrhea

4. Fatigue

5. Weight changes

Serious Side Effects:

1. Chest pain: If you experience chest pain while taking Synthroid, seek medical attention immediately as it could indicate a more severe issue.

2. Rapid heartbeat: A fast or irregular heartbeat can be a sign of an adverse reaction to the medication.

3. Allergic reaction: Symptoms of an allergic reaction may include rash, itching, swelling, severe dizziness, or trouble breathing. If you experience any of these symptoms, stop taking Synthroid and seek medical help.

It is vital to consult your healthcare provider if you experience any side effects while taking Synthroid. They can provide guidance on managing side effects or adjusting your dosage to mitigate adverse reactions.