Why was Synthroid recalled?

Synthroid (levothyroxine) itself hasn't had a single massive recall recently, but generic versions and related thyroid meds from various makers (like Accord, Mylan, Lupin) faced recalls in 2024-2025 due to subpotency (less active ingredient than labeled) or impurity issues, potentially affecting efficacy, with the FDA issuing Class II recalls (temporary/reversible effects) for these specific lots to ensure patient safety and consistent dosing.

What is the problem with synthroids?

Taking too much or too little SYNTHROID may lead to negative effects on growth and development, heart function, bone health, reproductive function, mental health, digestive function, and changes in blood sugar and cholesterol metabolism in adult or pediatric patients.

Why did levothyroxine get recalled?

Levothyroxine sodium is used to treat a sluggish thyroid gland (hypothyroidism). HealthDay News — The US Food and Drug Administration (FDA) has upgraded a recall of a commonly prescribed thyroid medication due to what it described as “subpotent” active ingredients.

Why was levothyroxine recalled in 2025?

On 10/15/2025, ACCORD HEALTHCARE recalled LEVOTHYROXINE SODIUM 88 MCG due to Subpotent: During long term stability testing of Levothyroxine Sodium Tablets USP for 88 mcg, the assay content was observed below the approved specification range.

Is Synthroid banned?

Exceptions: Insulin, Synthroid and Forteo are not banned.

FDA recalls Thyroid medications

Is Synthroid safer than levothyroxine?

Key Takeaways

Taking the same brand-name or generic thyroid hormone is best for managing thyroid disease. Generic levothyroxine is just as safe as Synthroid and costs less.

What is the long-term damage from levothyroxine?

Long-term levothyroxine use is generally safe and effective for hypothyroidism, but incorrect dosing, especially if too high, can lead to osteoporosis (bone loss), heart issues like palpitations or arrhythmias, worsened blood sugar control in diabetics, and potentially increased cancer risk (brain, skin, pancreatic, breast), necessitating regular monitoring for TSH levels, bone density, and heart health to ensure optimal dosage and prevent adverse effects.
 

Which is the safest thyroid medication?

Experts consider levothyroxine to be the first-choice medication for treating hypothyroidism. This is because it works well and doesn't have too many side effects. Levothyroxine is generally preferred over medications like Armour Thyroid.

Is levothyroxine a high risk drug?

Levothyroxine use was significantly associated with an increased risk of brain, skin, pancreatic, and female breast cancers.

How many years can you take levothyroxine?

How long will I take levothyroxine for? Treatment with levothyroxine is usually lifelong. If you stop taking levothyroxine your symptoms are likely to come back.

What drug can replace levothyroxine?

Other levothyroxine alternatives include liothyronine (brand name Cytomel), liotrix (brand name Thyrolar), and natural alternatives, such as NP Thyroid, Nature-Throid, Armour Thyroid, and others.

What is the toxic effect of levothyroxine?

The common clinical signs following thyroxine overdose can either be limited to tachycardia, agitation, nervousness, insomnia, anxiety, tremor [2], or severe features, though less likely, like thyroid storm involving cardiac, neurological, respiratory and thermoregulatory center [3].

Is Euthyrox being discontinued?

Levothyroxine sodium tablet: EMD Serono has discontinued all presentations of Euthyrox levothyroxine tablets, an endocrinology drug prescribed for thyroid hormone replacement. Discontinued strengths include 25 ug to 200 ug tablets in multiple packaging formats. The discontinuation is due to the end of manufacturing.

Why did I suddenly develop hyperthyroidism?

This condition happens when the thyroid gland becomes inflamed. In some cases, it's due to an autoimmune disorder. In others, the reason for it is unclear. The inflammation can cause extra thyroid hormone stored in the thyroid gland to leak into the bloodstream and cause symptoms of hyperthyroidism.

Why can't I convert T4 to T3?

Gut dysbiosis can affect thyroid hormone conversion. Approximately 20% of T4 is converted to T3 in the digestive tract so it is essential that gut microbiota is healthy for this conversion to take place. A sluggish liver can impact thyroid health adversely by affecting conversion of T4 to T3.

Is levothyroxine a carcinogen?

We found a slight increased overall cancer risk associated with levothyroxine treatment for both men and women. For women, increased risks were found for cancers of the breast, endometrium, and female genitals (ovaries not included).

What is the difference between levothyroxine and Synthroid?

Synthroid is the brand name for levothyroxine, which is commonly used to treat hypothyroidism (low thyroid levels). Synthroid and levothyroxine are human-made thyroxine (T4) hormones. But they're not always interchangeable with each other.

Why did my hypothyroidism turn into hyperthyroidism?

Hyperthyroidism can also be caused by taking too much thyroid hormone medicine for hypothyroidism. This is called factitious hyperthyroidism. When this occurs because the prescribed dosage of hormone medicine is too high, it is called iatrogenic, or doctor-induced, hyperthyroidism. This is common.

Is Synthroid made from pigs?

Synthroid is a brand name for levothyroxine, a synthetic (man-made) form of the thyroid hormone thyroxine, or T4. Armour Thyroid is a brand name for a natural form of thyroid hormone. It is made from the dried thyroid glands of pigs.

What is the one thing you should be eating for your thyroid every morning?

1. Traditional Eggs or Egg Muffin Cups. Eggs are a great source of not only iodine but also selenium, another crucial nutrient for thyroid health.

What are the symptoms of too much Synthroid?

There are many risks of taking too much levothyroxine. The signs and symptoms of thyroid overmedication include anxiety, diarrhea, depression, elevated heartbeat, elevated blood pressure, fatigue, irritability, difficulty concentrating, difficulty sleeping, being overheated, and unprompted or unintentional weight loss.

Can you ever get off of levothyroxine?

Background: Levothyroxine (LT4) is one of the most commonly prescribed medications. Although considered a life-long replacement therapy, LT4 therapy can be discontinued for some patients.

What is the life expectancy of someone with an underactive thyroid?

With proper, consistent treatment using thyroid hormone replacement, individuals with hypothyroidism generally have a normal life expectancy, living full lives without significant decline in quality or length of life; however, untreated hypothyroidism can lead to severe complications (like heart disease) and impact longevity, while some studies even suggest low-normal thyroid function might correlate with slightly longer life. 

Is Synthroid bad for your heart?

Heart conditions: Taking Synthroid may cause heart-related side effects, such as heart palpitations or an increased heart rate. If you already have a heart condition, such as atrial fibrillation, you may have a higher risk of these side effects. And taking Synthroid could make your heart condition worse.