A good drug for treating low thyroid activity, Synthroid is also used with other medications for certain kinds of thyroid cancer.
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It is a thyroid medicine and is also known as levothyroxine. It works by replacing the hormones produced normally by the thyroid gland in the body. It also helps regulate the body`s energy and metabolism. This medicine is usually prescribed to patients when the body does not produce enough hormone on its own. This medicine was first made in the year 1927 and is listed as an essential medicine by the World Health Organization. A generic version of this medicine is also available.

Uses of Synthroid

This medicine replaces the normally produced hormones and helps in the deficiency of it. It helps treat hypothyroidism and is also used to treat and prevent goitre. These ailments are usually caused by radiation treatment, cancer, surgery or hormone imbalance.

Side Effects of Synthroid

Get immediate medical help if you observe any side effects after using this medicine. Most patients do not report any side effects, however, in some cases, you may observe these effects. Listed are some of the common side effects of this medicine.

  • Skin rash
  • Diarrhea
  • Headache
  • Muscle weakness
  • Feeling nervous
  • Feeling Irritated
  • Mild hair loss
  • Leg cramps
Synthroid (levothyroxine) 100mcg tablets

It has been found that this medicine can cause some serious side effects as well such as

  • Changes in menstrual periods
  • Muscle aches
  • Irregular heart rate
  • Chest pain
  • Short of breath
  • Weakness
  • Insomnia
  • Memory problems
  • Feeling depressed
  • Feeling irritated
  • Muscle aches
  • Appetite change
  • Weight changes
  • Hot flashes
  • Sweating
  • Feeling unusually cold
  • Diarrhea
  • Skin dryness
  • Hair loss and dryness
  • Tiredness

For such side effects get immediate medical help. These side effects can be fatal hence be alert for them

Contraindications of Synthroid

Like every medicine, Synthroid also has certain side effects which can be harmful. It is important that you understand all these side effects. This medicine can be harmful in certain medical conditions and should not be used without proper guidance from the doctor. If you have untreated adrenal gland disorder or if you have had a recent heart attack, diabetes, osteoporosis, anemia, problems with the pituitary gland, or any kind of food or drug allergies, let your doctor know. These medical histories are important so that that the doctor can take the correct decision and prescribe the medicine and dose accordingly. This medicine should be taken empty stomach as it works best when taken before breakfast. Any changes to the medicine dose should be informed to the doctor and only after the approval you should make the changes. It may take few weeks before this medicine starts working for you. Even in case if you feel well then continue to take this medicine. In case if a child is using this medicine, keep an eye for any weight changes. In case you miss a dose then skip that dose and take the next one. Avoid taking any drugs within 4 hours before and after taking this medicine. Medicines such as antacids and sucralfate etc should not be used.

Pregnancy and Synthroid

No harmful effects to the unborn child have been observed for this medicine. However, talk to your doctor if you are pregnant and using this medicine. It can pass into the breast milk and affect the nursing child.

Drug Uses

Synthroid can be used for suppressing or treating different kinds of goiters.

How Taken

Synthroid should be taken only as prescribed by the doctor. You have to take the drug an hour earlier before taking meal on empty stomach or two to three hours after the meal. You get a better result if taken at the same time every day. Synthroid has to be taken for a lifetime unless it is taken on a trial basis or taken for low thyroid activity linked with thyroid inflammation. If patients and children have the difficulty in swallowing the drug, it can be crushed and mixed with one or two spoons of water. It is better not to store the drug for longer periods. It is also not good to mix tablets in soybean infant formula.

Missed Dose

If you have forgotten to take a dose, take it as soon as you remember it. Well, if it is time for the next dosage, it is better to skip the missed one and continue with the usual dosage. Do not take a double dosage.

More Information

It is better to consult the doctor if the symptoms are not improving or if it is worsening. The drug should be used only by the patients for whom it has been prescribed.