Niva Thyroid is used to treat hypothyroidism (low thyroid hormones) for adults and children. It's also used for other various thyroid-related issues. Niva Thyroid is a natural thyroid hormone replacement that's taken by mouth once a day. Side effects aren't common unless you take too much of the medication.
Hypothyroidism (low thyroid hormone)
Other thyroid problems like goiters, thyroid nodules, or thyroid cancer
Niva Thyroid is a naturally-derived combination of thyroid hormones. It's a mixture of the triiodothyronine (T3) and thyroxine (T4) hormones.
Thyroid hormones are important for your health. They help control your metabolism, body temperature, heart rate, and more
When your thyroid hormone levels are too low, taking thyroid replacement hormones like Niva Thyroid can bring them back to normal.
Source: DailyMed
Side effects that you should report to your care team as soon as possible:
Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome):
Natural thyroid hormone made from an animal source
Taken once daily
Might help when other thyroid medications haven't worked well
Can take during pregnancy
Amount of thyroid hormones in the medication can be different from batch to batch
Must separate from food and other medications
People with serious heart problems might need more careful dosing
Not traditionally approved by the FDA
It's a good idea to take Niva Thyroid first thing in the morning on an empty stomach. Food can affect how much of the medication your body absorbs.
Make sure to get all your blood work done while taking Niva Thyroid. Your primary care provider will adjust your dose based on your thyroid hormone levels.
Tell your prescriber if you start to have signs of hyperthyroidism (too much thyroid hormone in your body). This can include feeling shaky, a fast heartbeat, or trouble sleeping. They might check your thyroid hormone levels and lower your Niva Thyroid dose if needed.
Share a list of all the medication you take with your healthcare team. Niva Thyroid can change how other medications work, and other medications can affect Niva Thyroid too. Your care team can help adjust doses or make a schedule for when to take each medication. This helps prevent any drug interactions.
If you take cholesterol medications like cholestyramine (Prevalite) or colestipol (Colestid), be sure to take them 4 to 5 hours apart from Niva Thyroid. These cholesterol medications can lower how much thyroid hormone your body absorbs.
If you have diabetes and take medications to lower your blood sugar, tell your prescriber that you're taking Niva Thyroid. They might need to adjust the dose of your diabetes medications to help keep your blood sugar under control.
If you take a blood thinner, let the healthcare professional who prescribed it to you know that you're also taking Niva Thyroid. This medication can affect how well your blood thinner works. Your prescriber might need to monitor you more closely to make sure you're safe.
Niva Thyroid can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.
Risk factors: Taking other medications for weight loss
Don't use Niva Thyroid for weight loss. It’s not recommended, safe, or effective for this purpose. Taking high doses of Niva Thyroid can cause serious or life-threatening side effects, especially if you take it with other weight loss medications.
Risk factors: Adrenal insufficiency | Addison's disease
Some people can have low thyroid hormones and low adrenal hormones at the same time. Taking thyroid medications first can make your adrenal hormones drop even more and make you feel unwell. Your prescriber should check your adrenal hormone levels before you start Niva Thyroid. Let them know if you have long-lasting tiredness, muscle weakness, low appetite, stomach pain, or dizziness. These can be signs of adrenal problems.
Risk factors: Taking diabetes medication
If you have diabetes, taking Niva Thyroid can change how much of your diabetes medications you need. Check your blood sugar levels as directed by your prescriber. Talk to your prescriber if you see that your blood sugar levels are higher than usual. Your prescriber might need to raise the dose of your diabetes medication.
Risk factors: Currently have heart disease or chest pain | Older adults
Taking too much Niva Thyroid can cause heart problems, especially in people who already have heart issues or are at risk. Call your prescriber or get medical care right away if you have a fast or uneven heartbeat, chest pain, or shortness of breath. They can see if you need a lower dose if you have new or worsening heart problems while taking this medication.
Niva Thyroid can change the effects of certain medications. These medications include oral anticoagulants, insulin, and oral diabetes medications.
On the other hand, other medications can have an effect on the levels of Niva Thyroid in your system. This can include certain cholesterol medications and birth control pills.
Before starting Niva Thyroid, talk to your prescriber about all the medications you take. They might need to change your dose or help you plan the best time to take each one during the day. This makes sure your medications work well and lowers the chance of any interaction.
The dose depends on what you're taking the medication for. Your prescriber will adjust your dose based on how you respond to the medication and what your thyroid lab results show.
Hypothyroidism
Adults: The typical starting dose for adults is 30 mg by mouth daily, but it can be lower if you have certain health problems. Most people need a maintenance dose between 60 mg to 120 mg daily; it depends on your body's needs. The dose can go up to 120 mg a day.
Children: The prescriber will find the right starting dose based on your child's age and body weight.
Other thyroid-related issues: The prescriber will find the right dose for you based on your thyroid condition.
Untreated adrenal insufficiency
Untreated thyrotoxicosis
Hypothyroidism (low thyroid hormone)
Other thyroid problems like goiters, thyroid nodules, or thyroid cancer
Hypothyroidism (low thyroid hormone levels)
Thyroid cancer (together with radiation and surgery)
Hypothyroidism (low thyroid hormone)
Lowering thyroid-stimulating hormone (TSH) levels in people with other thyroid problems like goiters or thyroid cancer
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