Synthroid Solution, Reconstituted (Recon Soln)
GENERIC NAME(S): Levothyroxine
OTHER NAME(S): Synthroid Solution, Reconstituted (Recon Soln)
This medication should not be used for weight loss. Normal doses of this medication will not cause weight loss in people with normal thyroid function. Large doses of this medication may cause very serious (possibly fatal) side effects, especially when taken with diet pills.Show More
Levothyroxine is used to treat an underactive thyroid (hypothyroidism). It is a man-made substance that replaces the natural substance (thyroid hormone) that is normally produced by the thyroid gland. Low thyroid hormone levels can occur naturally or when the thyroid gland is injured by radiation/medications or removed by surgery. Having enough thyroid hormone in your bloodstream is important for maintaining normal mental and physical activity. In children, having enough thyroid hormone is important for normal mental and physical development.
How to use Synthroid Solution, Reconstituted (Recon Soln)
This medication is given by injection into a vein or into a muscle as directed by your doctor, usually once a day. Dosage is based on your medical condition, thyroid hormone levels, and response to treatment.
If you are giving this medication to yourself at home, learn all preparation and usage instructions from your health care professional. Use this medication immediately after mixing. Before using, check this product visually for particles or discoloration. If either is present, do not use the liquid. Learn how to store and discard medical supplies safely.
Use this medication regularly in order to get the most benefit from it. To help you remember, use it at the same time each day. Do not stop using this medication without consulting with your doctor. Thyroid replacement treatment is usually taken for life.
Symptoms of low thyroid levels include tiredness, muscle aches, constipation, dry skin, weight gain, slow heartbeat, or sensitivity to cold. These symptoms should improve in a few days as your body adjusts to this medication. Tell your doctor if your symptoms persist or worsen.
See also Precautions section.
Some hair loss may occur during the first few months of starting this drug. This effect is usually temporary as your body adjusts to this medication. If this effect persists or worsens, tell your doctor or pharmacist promptly.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Though unlikely, it is possible to have too much thyroid hormone. Your doctor may need to reduce the dose of this medication. Tell your doctor right away if any of these unlikely but serious signs of too much thyroid hormone occur: headache, mental/mood changes (e.g., nervousness, irritability), shaking, sweating, sensitivity to heat, diarrhea, weight loss, trouble sleeping, tiredness, bone pain, easily broken bones.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Before using levothyroxine, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: a certain overactive thyroid condition (thyrotoxicosis), a recent heart attack (acute myocardial infarction), adrenal gland problem (uncorrected adrenal insufficiency).
Before using this medication, tell your doctor or pharmacist your medical history, especially of: heart problems (e.g., angina, heart failure, irregular heartbeat), high blood pressure, diabetes (diabetes mellitus), water diabetes (diabetes insipidus), other hormone disorders (e.g., decreased pituitary hormone).
If you have diabetes, this drug may affect your blood sugar. Check your blood sugar regularly as directed and share the results with your doctor. Tell your doctor right away if you have symptoms such as increased thirst/urination, shakiness, unusual sweating, dizziness, or hunger. Your doctor may need to adjust your diabetes medication, exercise program, or diet.
Before having surgery, tell your doctor or dentist that you are taking this medication.
Older adults may be more sensitive to the side effects of this drug, especially fast/pounding/irregular heartbeat.
Children may be more sensitive to certain side effects of this drug, especially headache, vision changes, and hip/leg pain. High thyroid hormone levels may lead to decreased bone development/growth and reduced full adult height. Keep all lab/medical appointments so the doctor can monitor treatment.
Small amounts of this drug pass into breast milk. While there have been no reports of harm to nursing infants, consult your doctor before breast-feeding.
If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: fast/irregular heartbeat, chest pain, confusion, loss of consciousness.
Do not share this medication with others.
Laboratory and/or medical tests (e.g., thyroid function tests) should be performed periodically to monitor your progress or check for side effects. Some of the drugs listed in the Drug Interactions section can interfere with thyroid function tests, possibly causing false test results. Consult your doctor or laboratory personnel for more details.
For the best possible benefit, it is important to receive each scheduled dose of this medication as directed. If you miss a dose, contact your doctor or pharmacist right away to establish a new dosing schedule. Do not double the dose to catch up.
Store at room temperature away from light and moisture. After mixing, discard any unused portion. Do not store in the bathroom. Keep all medications away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.Information last revised April 2017. Copyright(c) 2017 First Databank, Inc.
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