http://www.drugcite.com/?q=SYNTHROID
suicidal and self-injurious behaviors (1.03% or 1 out of every 100 people taking it)
As I understand the problem; Synthroid only contains T-4. T-4 is converted into the liver into T-3. Some people may have trouble with this, leaving them with a T-3 deficiency.
No, no, no—that is raw data for every adverse event reported by anyone to the FDA with that individual somehow suspecting a link to the drug—with dozens and dozens of such ‘reported’ events for one of the safest and most widely taken drugs around. That 1% is the percent of all reported effects, not a percent of the people taking it.
Millions and millions of Americans take Synthroid or its equivalent, and they often take it after the first presenting symptoms that caused thyroid testing included depression. Then, it takes weeks for the drug to be fully built up in your system, so it doesn’t have immediate effect.
That raw list of any supposed side effects has everything, including the kitchen sink, in it. You would never find suicide or depression listed as an actual side effect of the drug.
Taking too much of it and getting too much thyroid in your system can lead to the like of heart palpitations and so anxiety could presumably come from that, but that is an overdose level.
If people can’t convert T-4 to T-3 adequately that can lead to the drug not accomplishing its goal or having the intended effect, but it doesn’t cause suicidal thoughts or actions.