Hormone Balancing

WP Thyroid is available in 8 strengths and only uses two all-natural inactive ingredients. Nature-Throid is available in 13 strengths and is a low-cost option. Both use the same active ingredient – Thyroid USP.

Prices depend on strength and vary by pharmacy. To find a pharmacy in your area, click here.

No, all ingredients in WP Thyroid and Nature-Throid are sourced from the U.S.

WP Thyroid is the purest of the three and, along with Nature-Throid, is hypoallergenic and does not contain any dyes. Armour uses dextrose (corn starch) as an inactive ingredient and is dyed white with titanium dioxide. You can view our comparison chart to see the differences side-by-side.

Thyroid USP (desiccated porcine thyroid) is the active ingredient in both.

Yes. Both WP Thyroid and Nature-Throid are available by prescription only. To find a thyroid doctor in your area, click here.

Yes, both medications are free of all glutens.

You can find WP Thyroid’s ingredients here and Nature-Throid’s ingredients here.

Lactose is not added to our formula but it is already present in Thyroid USP raw material as a diluent per USP (United States Pharmacopeia). Lactose is not contraindicated for individuals with allergies to dairy, as lactose is a milk sugar (vs. dairy allergies which are caused by proteins in milk). It is, however, contraindicated for individuals with lactose intolerance. We have had many physicians reporting no side effects while using Nature-Throid with lactose intolerant patients. The amount is very small – less than 5 mg. per 1 Grain vs. 12,000 – 15,000 mg. in a typical 8 fl. oz. glass of milk.

Any pharmacy can fill your prescription for WP Thyroid or Nature-Throid. If you are told either is backordered or discontinued, please contact us at 877.797.7997 or sales@rlclabs.com, with your pharmacy’s phone number so we can help them order the strength you need from their distributor. Click here for a list of mail order pharmacies.

Unfortunately we cannot ship outside the United States. However, we work with a few mail-order pharmacies that may be able to assist you. You can find their information here.

Neither medication is on backorder or discontinued, and all strengths are available. If you’re having trouble finding WP Thyroid or Nature-Throid, contact RLC Labs at 877.797.7997 orsales@rlclabs.com with your pharmacy’s information, so we can help them order your prescription from their distributor.

Both medications were formulated to be swallowed whole on an empty stomach with an 8oz glass of water. Use as directed by your doctor.

No thyroid drug is FDA approved for sublingual usage. Both tablets were formulated to be swallowed whole on an empty stomach with an 8oz glass of water. Use as directed by your doctor.

Use as prescribed by your doctor. Take as a single dose on an empty stomach, at least 30-60 minutes before consuming food or caffeine. Some medications and supplements may lower the effectiveness of WP Thyroid and Nature-Throid when taken simultaneously, so it is important to take WP Thyroid or Nature-Throid at least one hour before any other medication. Calcium supplements, iron products, or antacids need to be taken four hours apart.

Click here for a list of thyroid doctors in your area.

Store WP Thyroid and Nature-Throid at room temperature, 59°-86°F (15°-30°C), away from heat, moisture, and light. Dispense in tight, light-resistant containers as defined in the USP/NF. Keep out of reach of children and pets.

Since WP Thyroid is uncoated and formulated with minimal pure ingredients, the tablets can change color by absorbing ambient humidity. If the tablets are stored in their original container and at room temperature (59° (15°) – 86° F (30° C) with an ambient humidity of 10-65%, no discoloration occurs. However, exposed tablets outside of proper storage conditions still conform to USP specifications for both T4 and T3 potency and stability.

Wait 30-60 minutes after taking a WP Thyroid or Nature-Throid dose before consuming any caffeine products.

Your doctor will know which dosage is right for you, but you can click here for our conversion chart to compare the differences in strengths between different types of medication.

Our strength chart shows what the tablets looks like in each strength. Click here for WP Thyroid tablet strengths. Click here for Nature-Throid tablet strengths. If your pills do not match those in the picture, please contact your pharmacy.

Armour rounds their milligram amounts, while WP Thyroid and Nature-Throid provide a more precise number. So while Armour says 60mg and WP Thyroid and Nature-Throid say 65mg, the gram amounts are actually the same.

C Labs utilizes USDA pigs, which are not given blanket hormones or antibiotics unless specifically needed. You can learn more about USDA practices at usda.gov.

No, but we understand the importance of organically raised pigs and hope to have an organic option available in the future.