Same formula, different name.
Nature-Throid and Westhroid are identical formulations. Having one medication under two names caused some confusion; therefore, we made the decision to market under one name: Nature-Throid.
Today the hypoallergenic, low-cost formula is still available at your local pharmacy in 5 strengths. Nature-Throid may be carried at more pharmacies and is available in 13 strengths.
Due to the limited strengths of Westhroid, you may be interested in learning more about Nature-Throid. We also manufacture WP Thyroid, the purest thyroid medication formulated with only two all-natural inactive ingredients.
Westhroid(Thyroid USP) tablets are supplied in the following strengths:
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½ Grain (32.5 mg)
19 mcg T4, 4.5 mcg T3
1 Grain (65 mg)
38 mcg T4, 9 mcg T3
1 ½ Grain (97.5 mg)
57 mcg T4, 13.5 mcg T3
2 Grain (130 mg)
76 mcg T4, 18 mcg T3
2 ¼ Grain (146.25 mg)
85.5 mcg T4, 20.25 mcg T3
2 ½ Grain (162.5 mg)
95 mcg T4, 22.5 mcg T3
3 Grain (195 mg)
114 mcg T4, 27 mcg T3
Westhroidadheres to the full established United States Pharmacopeia (USP) monograph which indicates 38 mcg of levothyroxine (T4) and 9 mcg of liothyronine (T3) for each 65 mg of Thyroid USP.
Precautions
As with any prescription medication, talk to your doctor about any existing medical conditions, and let your doctor know immediately if you experience any side effects.
Tell your doctor if:
Warnings: Don’t Take For
Use Westhroid™ exactly as prescribed. Unless otherwise directed by your doctor, do not stop taking either medication or alter how often it’s taken. Many factors can contribute to the length of time symptoms are alleviated, though generally people feel an improvement within a few weeks. For some, though, improvement in symptoms may take up to three months. Your doctor will determine which dose is right for you. If any life changes or new symptoms occur, consult your doctor to adjust your dose. Continue to see your doctor until your dosage levels prove stable based on your lab work, then continue to see your doctor at their request. Thyroid replacement therapy is usually taken for life.