Thyroid hormone replacement is the mainstay of treatment for hypothyroidism, whether the hypothyroidism is caused by radiation, surgery, or Hashimoto’s disease (autoimmune destruction of the thyroid gland). The goal is to replace the body’s production of thyroid hormone in the most physiologic way possible. However, a quick internet search will reveal an overwhelming number of options for thyroid hormone replacement. In this article, we will break down the different brands of thyroid hormone available in the US and things to consider before selecting a formulation.
A normal thyroid gland produces 80% T4 (inactive thyroid
hormone) and 20% T3 (active thyroid hormone). Various organs have enzymes which
convert T4 to T3, which then mediates all the functions of thyroid hormone,
from sleep to digestion to temperature regulation.
Generic – Levothyroxine
Brand name – Synthroid, Levoxyl, Euthyrox, Unithroid,
These medications are usually the first-line treatment
offered. It is important to stay on the same brand or advise your doctor if you
are prescribed a different brand than before. Different brands even at the same
dose may have slightly different contents.
All these medications are comparable in effectiveness. Tirosint
is notable because it comes in a gel capsule or solution form, which can help
with medication absorption. Some patients may experience more stable thyroid levels
upon switching from generic to brand name hormone.
Synthetic: Cytomel/Liothyronine (T3) plus one of the T4
medications listed above.
Most doctors are reluctant to prescribe thyroid extract medications (which are made from dried and powdered pig thyroid glands) because they do not simulate the normal human thyroid production closely. They tend to contain high concentrations of T3 which can cause highly variable levels and symptoms. Prescribing T3 and T4 as separate pills allows the doctor to control the ratios of each.
A T3-only medication regimen is generally not prescribed.
There are a number of factors that go into selection of a thyroid
hormone replacement. Your endocrinologist can talk to you further about which
medication is the best choice for you, and why.
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Glucometers have revolutionized the management of diabetes. Early glucometers were clunky, slow, and required large drops of blood. The oldest ones simply displayed a color that had to be correlated to a numeric chart. On the other hand, the sleek, pocket-sized devices of today are lightning-fast and accurate.
So it’s no wonder that self-monitoring of blood glucose has
become the standard of care. At its best, it lights our path in achieving
glycemic control. At its worst, it’s an influx of confusing data, a constant
reminder of this condition. So how do we make sure the glucometer is an asset rather
than a nuisance?
5 things you should know about using a glucometer:
Timing matters. It’s not enough to merely check glucoses – your provider also needs a context for these glucose values. Make sure the date and time settings on the meter are correct, and if you keep a log, write the times alongside the values. Even better, make note of the relationship of the readings to meals. Checking pre-meal glucoses is a good place to start, and your doctor may want you to check 1-2 hours after a meal or overnight too.
Clean hands, accurate readings. Wash your hands with soap and water – and dry thoroughly! Residue of certain substances (like fruit) can artificially raise your glucose reading. Water can make the glucose look lower than it really is. Alcohol swabs or hand sanitizer will work too in a pinch, but keep in mind that applying alcohol excessively may dry out your skin.
Fingersticks don’t have to be a pain. Pricking on the side of the finger rather than the finger pad can help, since that region contains less sensory nerve endings, as can changing the lancet type or size. Alternate site testing (AST) refers to testing glucose from sites other than fingers – ie. Palm, forearm, thigh, abdomen. Ask your provider if your meter is approved for AST. Values from alternate sites tend to lag behind your actual blood glucose level, so the readings must be interpreted with caution.
What to do when numbers don’t make sense. Each finger is giving you a different reading, or you’re getting vastly different readings only minutes apart – how frustrating! First, ensure that your test strips aren’t expired, the test strips were properly stored, and your hands are clean. Make sure you’re giving an adequate blood sample. Then give the control solution a try. This is the small bottle that comes with every new meter. Apply a drop of this solution on the test strip to verify the accuracy of the glucometer. Your endocrinologist can send a prescription of the control solution to your pharmacy (and remember, it has an expiration date, too).
You can identify patterns too. Whykeep a log if the meter records all the glucoses? For one thing, it saves time at your appointment if the provider has a log to look through, leaving more time for us to discuss important management issues. But more importantly, a log helps you to recognize trends – like what that mid-afternoon vending machine treat does to your blood sugar.
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Novo Nordisk is offering a free 90-day supply of insulin to those who have lost health insurance due to the COVID-19 pandemic AND has expanded their patient assistance program for discounted insulin. Ask your endocrinologist for more information to see if you may qualify.