Euthyroid 50 Tablet is a medication utilized to treat an underactive thyroid gland hypothyroidism It replaces the hormone which is not being produced by your thyroid gland in sufficient quantity and helps regulate your body s energy and metabolism Before you start taking Euthyroid 50 Tablet your doctor will do a blood test to see what dose you need Once you start taking the medication you will have regular blood tests to see how well it is working and the dose may be adjusted from time to time It is best taken on an empty stomach before your first meal of the day You should take this medication regularly to get the maximum benefit It may take several weeks before your symptoms start to improve You may need to take it for the rest of your life If you stop taking it your symptoms are likely to come back The most common side effects of this medication are cautilized by taking a higher dose than you need Possible side effects include palpitations irregular heartbeat vomiting anxiety diarrhea weight loss nervousness or restlessness Most side effects will disappear once you are on the right dose Call your doctor straight away if you have a very high temperature fast or irregular heart rate low blood pressure yellowness in the eye skin confusion or fits