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Levothyroxine

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Starts $0.09 $0.06 per tablet
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Product Info
How to Use
Ingredients
Customer Reviews
Q&A
Product Info
What is Levothyroxine - Generic to Soloxine?

Levothyroxine is the active ingredient found in Thyro-Tabs, Soloxine, and Levocrine. Levothyroxine is a medication prescribed for dogs and cats to treat conditions associated with hypothyroidism. This medication can be used in cats in those instances where the thyroid gland has been surgically removed. Levothyroxine requires a prescription and is sold per tablet.

For:

Dogs (Used in cats in certain circumstances)

Benefits:
  • Is the active ingredient in Soloxine
  • Treats conditions associated with hypothyroidism
  • Easy to administer
How it Works:

Levothyroxine provides thyroid replacement therapy to pets with hypothyroidism or other thyroid conditions due to low circulating thyroid hormone.

Cautions:

Keep out of reach of children. Administer with caution to animals with primary hypertension, euthyroidism and clinically diagnosed heart disease.

Brand Name:

Soloxine (Virbac), Levotabs (Vetus), Synthroid (Knoll), Thyrosin (Vedco), Thyro-Tabs (Vet-a-Mix)

Generic Name:

Levothyroxine

What is the most important information I should know about Levothyroxine:

Levothyroxine is FDA approved for use in dogs only; however, it is a commonly accepted practice to use Levothyroxine in cats as well. Levothyroxine is available by prescription as 0.1 mg, 0.2 mg, 0.3 mg, 0.4 mg, 0.5 mg, 0.6 mg, 0.7 mg, 0.8 mg, and 1 mg tablets. The usual dose in dogs is 0.1 mg per 10 pounds. The usual dose in cats is 0.05 mg to 0.1 mg per cat. The dose of Levothyroxine may require adjustment based on periodic blood tests to determine your pet's T4 level. There are many medications that can affect Levothyroxine. Tell your veterinarian about all the prescription and over-the-counter medications you give your pet, including vitamins, minerals, herbal products, and drugs prescribed by other veterinarians. Levothyroxine will, most likely, be needed for the rest of your pet's life. Long term use of Levothyroxine may cause osteoporosis (bone loss).

What is Levothyroxine:

Levothyroxine is a replacement for the hormone that the thyroid gland normally produces to regulate the body's energy and metabolism. Levothyroxine is given when your pet's thyroid does not produce enough hormone on its own. Levothyroxine is used to treat hypothyroidism or low thyroid hormone. Levothyroxine may also be used for purposes other than those listed.

How should this medication be given:

Give Levothyroxine exactly as directed by your veterinarian. Do not give this medication in larger amounts or for longer than recommended by your veterinarian. Follow the directions on the prescription label. If you do not understand these directions, ask your pharmacist or veterinarian to explain them to you.

What happens if I miss a dose:

Give the missed dose as soon as you remember. However, if it is almost time for the next regularly scheduled dose, skip the missed dose and give the next one as directed. Do not give a double dose of this medication.

What happens if I overdose my pet:

Seek emergency veterinary medical attention if you feel an overdose was given. If given at the proper dose based on blood tests there should be no side effects. Symptoms of Levothyroxine overdose may include dizziness and fainting, increased thirst, urination and hunger, and panting.

What should I avoid while giving Levothyroxine:

Different brands of levothyroxine may not work the same. If the pills look different from the last filling, speak to your pharmacist or veterinarian.

What are the possible side effects of Levothyroxine:

If any of the following serious side effects occur, stop giving Levothyroxine and seek emergency veterinary medical attention: an allergic reaction (swelling of the lips, face, or tongue; difficulty breathing; closing of the throat; or hives). Call your veterinarian if your pet develops any of these serious side effects: sleep problems; personality changes; fever; appetite changes, weight changes. Less serious side effects may be more likely to occur. Continue to use Levothyroxine if your pet experiences: cough; loss of appetite; dizziness, drowsiness; sleep problems; dry mouth; nausea, vomiting, diarrhea; itching or rash. Side effects other than those listed here may also occur. Talk to your veterinarian about any side effect that seems unusual or bothersome to your pet.

What other drugs will affect Levothyroxine:

Tell your veterinarian if your pet is being given an antidepressant. Talk to your veterinarian or pharmacist before giving any prescription or over-the-counter medications, including vitamins, minerals, and herbal products. Certain medications can be given with Levothyroxine, but they may make Levothyroxine less effective. If you give your pet: sucralfate (Carafate),or aluminum antacids (Maalox, Mylanta), use them 4 hours before or 4 hours after giving Levothyroxine.

Where can I get more information:

Your pharmacist has additional information about Levothyroxine for health professionals that you may read.

How to Use
Directions:
  • Levothyroxine is used to treat hypothyroidism or low thyroid hormone.
  • Periodic blood tests are necessary to measure thyroid hormone levels.
Tip:

Allow plenty of water for the pet to drink. Levothyroxine may be given directly or placed in your pet's food.

Dosage:
Dogs:
Weight
Dosage
All weights
The usual dose in dogs is 0.1 mg per 10 lbs of body weight given twice a day typically although some dogs are dosed once a day
Cats: (in certain circumstances)
Weight
Dosage
All weights
The usual dose is 0.05-0.1 mg per cat.
Horses:
Do not use!
Storage:

Store at room temperature away from moisture and heat.

Ingredients
Levothyroxine:
Levothyroxine Sodium 0.1 mg Tablets:
Ingredient
Strength
Levothyroxine Sodium
0.1 mg
Levothyroxine Sodium 0.2 mg Tablets:
Ingredient
Strength
Levothyroxine Sodium
0.2 mg
Levothyroxine Sodium 0.3 mg Tablets:
Ingredient
Strength
Levothyroxine Sodium
0.3 mg
Levothyroxine Sodium 0.4 mg Tablets:
Ingredient
Strength
Levothyroxine Sodium
0.4 mg
Levothyroxine Sodium 0.5 mg Tablets:
Ingredient
Strength
Levothyroxine Sodium
0.5 mg
Levothyroxine Sodium 0.6 mg Tablets:
Ingredient
Strength
Levothyroxine Sodium
0.6 mg
Levothyroxine Sodium 0.7 mg Tablets:
Ingredient
Strength
Levothyroxine Sodium
0.7 mg
Levothyroxine Sodium 0.8 mg Tablets:
Ingredient
Strength
Levothyroxine Sodium
0.8 mg
Levothyroxine Sodium 1.0 mg Tablets:
Ingredient
Strength
Levothyroxine Sodium
1.0 mg
Customer Reviews
Levothyroxine is rated 4.2 out of 5 by 6.
Rated 4 out of 5 by from Medication is great. Took a long time to get. Out dog, Maddie, has been on this medication for years. We moved from our Vet to 1800petmeds about 6 months ago without a problem. Last month she had blood work and the dose needed to be changed. Our Vet was contacted, but they did not respond. There was a mix up at their office, and I didn't get notified that the Vet had returned the prescription stating there was no owner/pet by that name. When I realized this 2 weeks later, I called 1800petmeds and they resent it to the Vet and I also called them to alert them of the request. I asked 1800petmeds if they could overnight my shipment as we were now out of medication and they adjusted shipping at no extra charge.
Date published: 2016-12-21
Rated 5 out of 5 by from Easy...easy...easy Never a problem and very cordial people to work with.
Date published: 2016-12-14
Rated 5 out of 5 by from A good alternative to Soloxine. Soloxine has been out of stock for a lengthy amount of time and this has been an adequate replacement. My dog's weight is still low and I haven't noticed any side effects except for increased water consumption which I'm not concerned about.
Date published: 2016-05-15
Rated 5 out of 5 by from Generic just as good as Soloxine.... I've been giving this drug to my sweet golden (Buster) since I first discovered it's the generic equivalent of Soloxine, which seems to run out of stock more often than not. Also, I personally take this same medication for hypothyroidism, and I trust both my primary care physician and Buster's vet without question. I have faith that both are providing us with excellent care.
Date published: 2016-04-21
Rated 5 out of 5 by from Very helpful My Sheltie"s skin, disposition, and energy level are back to a more normal and healthy state. Lucky for me she was diagnosed with low thyroid because it made me address my low energy concerns. We are both basically on the same medication and are both doing very well.. Of course mine is from a Doctor and not a vet. This is a life time drug and I believe it works well.
Date published: 2015-08-12
Rated 1 out of 5 by from Don't like...... The medication seems to cause my friend's (Chocolate Lab/Pokie) muscles to deteriorate. I can not afford another blood panel so soon and was advised to keep him on same meds but can't when they are out.
Date published: 2015-07-20
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Q&A

MY DOGS TAKE SOLOXINE .8 SO IT WOULD BE THE SAME TO ORDER THE LEVOTHYROXINE INSTEAD? 

Asked by: VADER
Yes, levothyroxine is the generic of soloxine, and is therapeutically equivalent.
Answered by: Christine
Date published: 2017-01-19

Is Levocrine the same as Soloxine?

Asked by: Ziggy
Yes, Levocrine and Soloxine are different brands of the generic medication Levothyroxine.
Answered by: Christine
Date published: 2016-10-13

Are these chewable tablets ?

Asked by: Bruce
No, these are not chewable tablets.
Answered by: Christine
Date published: 2016-10-01

Is this a little bkue pill

Asked by: Koda2
The color of levothyroxine varies based on the strength. It can be a little blue pill, but it could also be another color. If you are unsure what pill you have, do not give it to your pet until it can be identified.
Answered by: Christine
Date published: 2016-09-28

Can I get it in a 1000 count bottle?

Asked by: Anonymous
Hi there, this is sold by tablet so you can order as many as you wish. Once the order is complete we would reach out to your vet to obtain the approval.
Answered by: James PetMeds Pro
Date published: 2015-10-08

are these the same as..??

My Dog Takes 0.8mg of Thyroxine, are these the same as Thyroxine? And I do need a prescription from my vet ?
Asked by: Anonymous
yes, it is the same generic medication we carry LEVOTHYROXINE. It does require a prescription from a veterinarian
Answered by: Linda petmeds pharmacist
Date published: 2015-09-18

Medication Dosage

I would like to order Levothyroxine 0.1mg but the choice is not available on the list, however in the description it is. Please advise how to order what I need.
Asked by: Anonymous
Order the 2 mg and half. They are scored and easy to break in halfs.
Answered by: Anonymous
Date published: 2016-11-20

Is Levothyroxine the same as Thyroxine?

My vet is charging $34 for 50 pills of "Thyroxine" at .8mg. That would be .8 milligrams, not micrograms. Your price would be $7.50 for 50 pills of Levothyroxine .8mg. Are these medications and dosages the same? Steve S.
Asked by: Anonymous
Supposedly - my vet charges .34 each compared to about .15
Answered by: Anonymous
Date published: 2015-07-20
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