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What If I Take an Overdose of Synthroid?

People who take too much Synthroid may have overdose symptoms that can include:
(Click Synthroid Overdose for more information.)

What Should I Do If I Miss a Dose of Synthroid?

If you forget to take your dose, take your missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not take a double dose. Each time you get your blood tests to monitor your thyroid function, be sure to tell your healthcare provider if you have missed any doses, as this may affect any dose adjustments.

Strengths of Synthroid

Synthroid tablets come in the following strengths (the colors of the tablets are in parentheses):
  • 25 mcg (orange)
  • 50 mcg (white)
  • 75 mcg (violet)
  • 88 mcg (olive)
  • 100 mcg (yellow)
  • 112 mcg (rose)
  • 125 mcg (brown)
  • 137 mcg (turquoise)
  • 150 mcg (blue)
  • 175 mcg (lilac)
  • 200 mcg (pink)
  • 300 mcg (green).
Sometimes, the strengths of Synthroid are given in milligrams (mg) instead of micrograms (mcg), which can be confusing. Because there are 1,000 mcg in every mg, Synthroid 100 mcg is the same thing as Synthroid 0.1 mg.
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Synthroid Medication Information

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