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NP Thyroid Side Effects

Generic name: thyroid desiccated

Medically reviewed by Last updated on May 22, 2024.

Note: This document contains side effect information about thyroid desiccated. Some dosage forms listed on this page may not apply to the brand name NP Thyroid.

Applies to thyroid desiccated: oral tablet.


Oral route (Tablet)

In euthyroid patients, doses within the range of daily hormonal requirements are ineffective for weight reduction. Larger doses may produce serious or even life-threatening manifestations of toxicity, particularly when given in association with sympathomimetic amines such as those used for their anorectic effects.

Serious side effects of NP Thyroid

Along with its needed effects, thyroid desiccated (the active ingredient contained in NP Thyroid) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Get emergency help immediately if any of the following symptoms of overdose occur while taking thyroid desiccated:

For Healthcare Professionals

Applies to thyroid desiccated: compounding powder, oral capsule, oral tablet.


Adverse reactions other than those attributable to hyperthyroidism due to therapeutic overdose are rare. Excessive doses may result in a hypermetabolic state resembling in every respect the condition of endogenous origin.[Ref]

If signs and symptoms of overdosage appear, the dosage should be reduced or therapy temporarily discontinued and may be reinstituted at a lower dosage. Normal hypothalamic-pituitary-thyroid axis function has been restored in 6 to 8 weeks after thyroid suppression.[Ref]

Frequently asked questions


1. (2022) "Product Information. Armour Thyroid (thyroid desiccated)." Forest Pharmaceuticals

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.