Synthroid is typically prescribed to treat an underactive thyroid and a variety of thyroid problems. This manufactured drug is identical to the naturally occurring hormone levothyroxine (T4). As with any medication, side effects are possible with Synthroid, such as insomnia, hair loss, and a rapid heart rate. The medication comes in tablet form and is taken once a day in the morning. Synthroid has the active ingredient of levothyroxine sodium which is a prescribed medication that is a manufactured version of a certain thyroid hormone.

Synthroid is used for treating several conditions like an underactive thyroid, goiters, and certain types of thyroid cancer. This prescription medication is a manufactured version of a naturally occurring thyroid hormone (levothyroxine, or T4). Synthroid works to boost the body’s thyroid hormone levels. At this time, there are more Synthroid uses include treating depression in conjunction with other antidepressant medications. Brand-name Synthroid is made by Abbott Laboratories.

How to Use Synthroid Tablets

  • The medication comes in tablet form. It is usually taken once a day in the morning.
  • It is best to take your Synthroid dosage on an empty stomach 30 to 60 minutes before breakfast.
  • If necessary (such as for young children), the tablet may be crushed and mixed with one or two teaspoons of water. This mixture must be taken immediately (it should not be stored).
  • Try to take Synthroid at the same time each day to keep an even level in your blood.

Cautions before Use Synthroid Tablets

  • People who do not have thyroid problems should never use Synthroid to lose weight. A Synthroid dosage high enough to cause weight loss in such people is often high enough to cause serious or even life-threatening problems.
  • Synthroid should not be used to treat goiters or thyroid nodules in people who have a low level of thyroid-stimulating hormone (TSH), as it could cause dangerous side effects.
  • Synthroid is a "narrow therapeutic index" medication. This means that for any given person, the range of Synthroid doses that are both safe and effective is small. Even tiny changes in doses can cause significant problems.
  • Synthroid may increase the risk of osteoporosis, particularly if your Synthroid dose is too high.
  • Synthroid is such a medication that can make heart problems worse.

Synthroid Tablets Side Effects

The side effects which may occur due to the usage of Synthroid are as follows:

  • An increased appetite, along with weight loss
  • Feeling hot all the time and increased sweating
  • Fever
  • Hyperactivity or nervousness
  • Insomnia
  • Emotional changes
  • Shakiness or muscle weakness
  • Heart palpitations
  • High blood pressure
  • A rapid heart rate
  • Heart failure,
  • Difficult or painful breathing
  • Diarrhea,
  • Hair loss

Synthroid Tablets Reactions and Overdose

Synthroid drug interactions can occur when it is combined with seizure medications, antacids, or antidepressants. These interactions can prevent Synthroid from being absorbed into the body or can alter the amounts of the medications in the blood.

Synthroid is a "narrow therapeutic index" medication, which means that the safe and effective dose is close to the toxic dose. As a result, a Synthroid overdose can occur if you take even a little more of your dosage than prescribed. Overdose symptoms can be dangerous and may include seizures, heart palpitations, and strokes. Treatment options for a Synthroid overdose may include medical supportive care.


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