Treatment with synthetic thyroid hormone is usually simple, safe and effective once you and your doctor find the right dose for you. Nippoldt TB. Skipping doses can cause your thyroid to go off balance. Other uses for this medicine. Also know what the side effects are.
This balance is essential to your body's ability to function at its best.
View information about Tirosint Tirosint.
Some people who took propylthiouracil needed liver transplants and some people died because of the liver damage.
WHAT YOU NEED TO KNOW:
Gestation specific reference ranges for thyroid function tests hhpothyroidism not widely in use although many centres are now preparing them. There are no symptoms that people with hypothyroidism always have and many symptoms of hypothyroidism can occur in people with other diseases. If part of the gland is left, it may be able to make enough thyroid hormone to keep blood levels normal. In a few people, diseases deposit abnormal substances in the thyroid and impair its ability to function.
Medications this medication in the container it came in, tightly closed, and out of reach of children. Hypothyroidism webms be due to a number of factors, including:. Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. A thyroidectomy is a minimally invasive surgery that is meant to treat thyroid cancer, goiters, and hyperthyroidism.
View information about levothyroxine levothyroxine. Levothyroxine, a synthetic form of thyroid hormone that's safe for your baby, is the standard treatment. Chorea gravidarum. Off-label This medication may not be approved by the FDA for the treatment of this condition.
Symptoms of Hypothyroidism
Learn more. Drug class: thyroid drugs. Experts believe this severe nausea and vomiting is caused by high levels of hCG early in pregnancy.
Due to an increase in thyroxine binding globulin, an increase in placental type 3 deioidinase and the placental transfer of maternal thyroxine to the fetus, the demand for medication hormones is increased during pregnancy. One in every to babies are born with hypothyroidism. Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use in pregnant women despite potential risks. View information about levothyroxine levothyroxine. Blood tests that measure the levels of thyroid hormones and serum TSH will be ordered, and possibly other tests such as those for cholesterol which is often abnormal in people with hypothyroidism.
Hypothyroiidsm Clinic. August Other uses for this medicine What special precautions should I follow? You may feel a lump, notice one side of your neck appears to be different, or your doctor may find it during a routine examination. Also, synthetic T3-T4 combination drugs can cause anxiety — if you have a preexisting mental health disability, such side effects may be even greater.
Failure to comply may result in legal action. In general, when they're needed, your doctor will give you the least amount of drug necessary to achieve control of your thyroid hormones. Hypothyroidism is often suspected when TSH levels are above normal and T4 levels are below normal. He or she will ask what medicines you take. Tell him or her about your medical history and if anyone in your family has hypothyroidism. Congenital hypothyroidism hypothyroidism that a baby is born with.
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Learn how thyroid problems can hypothyroiddism you if you're trying to get pregnant. Thyroid hormones are important in hypothyroidism and pregnancy webmd medications brain development and growth of the fetus. Birth defects with either type of medicine are rare. Thyroxine requirements may increase in late gestation and return to pre-pregnancy levels in the majority of women on delivery. Your symptoms should disappear and the serious effects of low thyroid hormone should improve.
A thyroidectomy is a minimally invasive surgery that is meant to treat thyroid cancer, goiters, and hyperthyroidism.
Hypothyroidism is treated by replacing the missing thyroid hormones with oral synthetic thyroid hormones, such as levothyroxine, liothyronine, or liotrix. The Journal of Clinical Endocrinology and Metabolism.
However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Anti-thyroid medicines, if the treatment is more important than the risk.
Untreated hyperthyroidism, when severe, may adversely affect the pregnancy. All hypothyroid patients except those with severe myxedema life-threatening hypothyroidism can be treated as outpatients, not having to be admitted to the hospital.
Yes, it's safe. This distinction is important since the latter condition is typically mild and will not usually require specific antithyroid treatment. Autoimmune thyroiditis can begin suddenly or it can develop slowly over years. This material must not be used for commercial purposes, or in any hospital or medical facility.
Children, teenagers, and the elderly generally require smaller doses. Do not take more or less of it or take it more often than prescribed by your doctor. Brand names Other names. Some medicines cross the placenta and may not be safe for the baby. While synthetic T4 hormones are safe and effective treatments for hypothyroidism, unregulated supplements sourced from real animal thyroids may do your health more harm than good. Synthetic T4 is available in a prescription medication called levothyroxinesold under brand names such as Levothroid and Synthroid. Accessed June 29,
Take the missed dose as soon as you remember it.
Breastfeeding difficulties Low milk supply Cracked nipples Breast engorgement Childbirth-related post-traumatic stress disorder Diastasis symphysis pubis Postpartum bleeding Peripartum cardiomyopathy Postpartum depression Postpartum infections Postpartum psychosis Postpartum thyroiditis Puerperal mastitis.
The Lecturio Medical Concept Library. The New England Journal of Medicine.
Synthetic T4 Hormones to Replace Insufficient Thyroid Hormones Hypothyroidism is most commonly treated with thyroid hormone replacement therapy, and the most effective way to treat hypothyroidism is with synthetic T4 medication. Your doctor will order certain lab tests to check your body's response to propylthiouracil.
Consequently, all newborn babies in the United States are screened for congenital hypothyroidism so they can be treated with thyroid hormone replacement therapy as soon as possible. Sometimes the thyroid makes too much or too little of these hormones. Symptoms of hypothyroidism may be mild and may start slowly. What causes hypothyroidism in pregnancy? Main article: Postpartum thyroiditis. Dosage of thyroid hormone replacement therapy is based on the individual's levels of thyroid hormones.
However, they do suggest thyroidectomy in hyperthyroid women during pregnancy when thioamides thyroid medicatlons are not tolerated due to allergy or blood disorders such as agranulocytosis. This is birth before 37 weeks of pregnancy. Its signs and symptoms include intense cold intolerance and drowsiness followed by profound lethargy and unconsciousness. Health Tools. Thyroid gland Your thyroid gland is located at the base of your neck, just below the Adam's apple. Additional reporting contributed by Melinda Carstensen and Stephanie Bucklin.
Hypothroidism in Pregnancy FAQs
The diagnosis of hyperthyroidism during pregnancy is based upon clinical manifestations and laboratory findings. Hypothyroidism diet Hypothyroidism symptoms: Can hypothyroidism cause eye problems? Why is this medication prescribed? The Lancet. Similar to calcium, these supplements can affect how your thyroid hormone replacement is absorbed in the body.
The exact dose of medication needed will be based on your TSH thyroid-stimulating hormone level. Symptoms may not be obvious and may include: Poor feeding Cold hands and feet Extreme sleepiness A pregnancy webmd or hoarse cry Constipation Little or no growth Poor muscle tone floppy infant Persistent jaundice Puffy face or a swollen tongue Stomach bloating. When the pituitary is damaged by a tumor, radiation, or surgery, it may no longer be able to give the thyroid instructions, and the thyroid may stop making enough hormone. It is recommended that TSH levels are maintained below 2. Nature Reviews.
Accurate thyroid function tests are available to diagnose hypothyroidism. The disease may lead to weight gain and an increased risk for depression; women with hypothyroidism may have trouble conceiving; and youngsters may experience growth delays. Pregnancy and Your Thyroid. Propylthiouracil may cause severe liver damage in adults and children.
Facts about hypothyroidism and pregnancy
You want to web,d hypothyroidism and pregnancy webmd medications thyroxine treatment. Your baby's doctor will also monitor your newborn for thyroid problems that may be present at birth. Treatment of hypothyroidism reduces the risks of these adverse obstetric and fetal outcomes; a retrospective study of pregnancies showed that treatment of hypothyroidism led to reduced rates of abortion and premature delivery. Here are the major causes, from the most to the least common. It is usually permanent and life-long.
However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule.
Autoimmune thyroiditis can begin suddenly or it can develop slowly over years. SCH is the commonest form of hypothyroidism in pregnancy and is usually due to progressive thyroid destruction due to autoimmune thyroid disease.
Graves disease is a problem with the body's immune system. Ask your doctor or pharmacist or check the Medication Guide for a list of the ingredients.
Hipotiroidismo Durante el Embarazo.
If your hyperthyroidism is more severe, your doctor may prescribe antithyroid medicines, which cause your thyroid to make less thyroid hormone. Less often, one or more nodules, or lumps in your thyroid, make too much thyroid hormone.
Treating Hyperthyroidism. Other names.
What are the symptoms of hypothyroidism? They also should immediately increase their levothyroxine dose, because hypothyroidism and pregnancy webmd medications hormone requirements increase during pregnancy. Make an appointment with your doctor if you suspect your thyroid levels may be low, or if your baby has symptoms of hypothyroidism. Help Learn to edit Community portal Recent changes Upload file. The most common cause of hyperthyroidism is Graves' disease, an autoimmune condition in which the body produces an antibody that causes the thyroid gland to release too much hormone.
Take propylthiouracil exactly as directed. A hypothyroidism diagnosis can hypothyroidism and pregnancy webmd medications at once upsetting and relieving. Skipping doses can cause your thyroid to go off balance. Graves disease usually gets worse in the first half of pregnancy. You must take synthetic thyroxine every day in the morning on an empty stomach.
What causes Graves disease in pregnancy?
One such option is a so-called natural thyroid supplement made from dried animal thyroid glands. A thyroidectomy is a minimally invasive surgery that is meant to treat thyroid cancer, goiters, and hyperthyroidism. Take propylthiouracil exactly as directed.
Abuse may lead to limited physical dependence or psychological hypothygoidism relative to those in schedule 3. Some only go through the hyperthyroid phase, and some only the hypothyroid phase. A few have part or all of their thyroid in the wrong place ectopic thyroid. Damage to the pituitary gland. Even women who have been successfully treated for Graves' disease may still have this antibody and require special monitoring during pregnancy. The guidelines make the following points about caring for moms-to-be who have hypothyroidism:. During the first trimester—the first 3 months of pregnancy—your baby depends on your supply of thyroid hormone, which comes through the placenta.
One small study of 20 female patients with hypothyroidism found that yoga did help patients manage their disease symptoms. Propylthiouracil may cause side effects. Complementary Therapies in Clinical Practice. Graves disease is a condition where the thyroid gland makes too much thyroid hormone. Resistance of thyrotropin and thyrotropin releasing hormone.
Brand names. Spring Wait at least 30 minutes before eating or drinking with the exception of water. Thyroid diseases are among the most common endocrine disorders encountered during pregnancy. Sign up for our newsletter, and get this free sanity-saving guide to life in the time of corona.
Why is this medication prescribed?
Sometimes doctors switch to methimazole after the first trimester of pregnancy. Thyroid function mevications hypothyroidism and pregnancy webmd medications during normal pregnancy due to the influence of two main hormones: human chorionic gonadotropin hCG and estrogen. For consumers: dosageinteractionsside effects. Your doctor may prescribe levothyroxine to treat your hypothyroidism. Hypothroidism in Pregnancy FAQs.
Because the symptoms are so variable and nonspecific, the only way to know for sure whether you have hypothyroidism is with a hypothyroidism and pregnancy webmd medications blood test for TSH. Another type of antithyroid medicine, methimazoleis easier to take and has fewer side effects, but is slightly more likely to cause serious birth defects than PTU. It's measured by a simple blood test. Symptoms of hypothyroidism may be mild and may start slowly. What causes hypothyroidism in pregnancy? The treatment is safe and essential to both mother and fetus.
Add review. Symptoms include. View information about Cytomel Cytomel. From Wikipedia, the free encyclopedia. Your doctor may prescribe thyroid hormone medicine to help with your symptoms.
Understanding the Causes of Hypothyroidism and How It’s Diagnosed
Hypothyroidism: Should I take iodine supplements? Other uses for this medicine. In choosing your treatment, make sure you understand and discuss all the risks, benefits, and side effects with your doctor. Propylthiouracil pronounced as proe pill thye oh yoor' a sill.
In addition, both of mrdications antithyroid drugs cross the placenta and can pregnancy webmd medications the developing baby. Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use in pregnant women despite potential risks. Radioactive iodine is absolutely contraindicated in pregnancy and the puerperium. PMID
One in every to babies are born with hypothyroidism. Department of Health and Human Services. This is more common in women than men. The goal of treatment is to get and keep your TSH in the normal range.
University of Maryland Medical Center.
If you keep your hypothyroidism well-controlled, it will not shorten your life span.
Take propylthiouracil exactly as directed.
However it happens, these antibodies affect the thyroid's ability to produce hormones.
This is called congenital hypothyroidism and medicationns because the thyroid gland does not develop hypothyroidism and pregnancy webmd medications function properly. Hypothyroidism in pregnancy. Thyroid disease in pregnancy can affect the health of the mother as well as the child before and after delivery. During pregnancy, your baby gets iodine from your diet. Your thyroid physician can help make the best decision about the use of these medications. Some studies show that children whose mothers didn't have enough thyroid hormone during pregnancy may have lower IQs. The thyroid gland must have iodine to make thyroid hormone.
What are the symptoms of hypothyroidism?
Treatment options for pregnant women with overt hyperthyroidism are limited because therapy may be harmful to the fetus. Last Updated: January 22, Feb ; 2 Even hypothyroid patients are exploring their options outside of synthetic thyroid hormone. This is birth before 37 weeks of pregnancy.
Thyroid Issues? Propylthiouracil is used webmd medications treat hyperthyroidism a condition that occurs when the thyroid gland produces too much thyroid jypothyroidism, speeding the body's metabolism, and causing certain symptoms in adults and children 6 years of age or older. Some pregnant women have a severe life-threatening form of hyperthyroidism called thyroid storm. But if this condition is diagnosed within the first few months of life, the chances of normal development are excellent. Resources Community Advice Patient Guides.
View information about Tirosint Tirosint. Off-label This medication may not be approved by the FDA for hypothyroidism and pregnancy webmd medications treatment of this condition. If you're pregnant, you must continue to take levothyroxine and stay in close contact with your doctor. Thyroid function tests should be checked approximately every 4 weeks during the first half of pregnancy to ensure that the woman has normal thyroid function throughout pregnancy. What are the symptoms of postpartum thyroiditis?
New York, N. August September 23, Synthetic T4 Hormones to Replace Insufficient Thyroid Hormones Hypothyroidism is karukayado hashimoto s hypothyroidism commonly treated with thyroid hormone replacement therapy, and the most effective way to treat hypothyroidism is with synthetic T4 medication. At the visit, write down the name of a new diagnosis, and any new medicines, treatments, or tests. Beware these potentially dangerous options, and be sure to talk to your doctor before trying any of them.
What role do thyroid hormones play in pregnancy?
If your symptoms are hypothyroidism and pregnancy webmd medications you, your doctor may prescribe a beta-blocker, a medicine that slows your heart rate. A few babies are born without a thyroid or with only a partly formed one. View information about Levo-T Levo-T. View information about Armour Thyroid Armour Thyroid. How do doctors treat hyperthyroidism during pregnancy?
It is treated by replacing the amount of hormone that your own thyroid can no longer make, to bring your T4 and TSH levels back to normal levels. View information about Tirosint Tirosint. El folleto de Hipotiroidismo. Some women no longer need antithyroid medicine in the third trimester.
Mayo Clinic. May 11, Meeications Penny for your thoughts. Propylthiouracil may cause severe liver problems in pregnant women and may harm the fetus. April 23, Because of this risk, propylthiouracil should only be given to people who cannot receive other treatments such as surgery, radioactive iodine, or a different medication called methimazole Tapazole.
Also, a prospective intervention trial study showed that treatment of euthyroid antibody positive pregnant women led webm fewer rates of miscarriage than non treated controls. Your doctor will most likely prescribe levothyroxinea thyroid hormone medicine that is the same as T4, one of the hormones the thyroid normally makes. The only dangers of thyroxine are caused by taking too little or too much.
Expert Opinion on Pharmacotherapy. How do doctors treat hypothyroidism during pregnancy?
Many other medications may also interact with propylthiouracil, so be sure to tell your doctor about all the other medications you are taking, even if they do not appear on this list. Endocrine Community.
Iodine: Fact Sheet for Health Professionals. Recent Posts
You may feel a lump, notice one side of medicatiojs neck appears to be different, or your doctor may find it during a routine examination. Take propylthiouracil exactly as directed. Be sure to mention any of the following: anticoagulants 'blood thinners' such as warfarin Coumadinbeta blockers such as atenolol Tenorminlabetalol Normodynemetoprolol Lopressor, Toprol XLnadolol Corgardand propranolol Inderal ; digoxin Digitek, Lanoxinand theophylline Theo, Theochron, Theolair. Suri MD.
Merck Manual Professional Version. Pregnancy 15 April Your doctor may decrease your dose of propylthiouracil once your condition is controlled. Hgpothyroidism disorders occur when your immune system produces antibodies that attack your own tissues. They may also have:. Your thyroid is a small, butterfly-shaped gland situated at the base of the front of your neck, just below your Adam's apple. In choosing your treatment, make sure you understand and discuss all the risks, benefits, and side effects with your doctor.
What is hypothyroidism?
When you first start taking prescription thyroxine hormones, your doctor will prescribe a dosage based on your blood test results. Scientists aren't sure why this happens, but it's likely a combination of factors, such as your genes and an environmental trigger. For one thing, most patients see their condition improve with synthetic T4 alone because of the ability of the thyroid to convert these hormones to T3 when needed. Ask your pharmacist any questions you have about refilling your prescription.
Each of the treatments above has a balance of risks and benefits—you and your doctor should discuss why one treatment may be more suitable and the right option for you. More Information Hypothyroidism symptoms: Can hypothyroidism cause eye problems? However, you should not flush this medication down the toilet. Your doctor may decrease your dose of propylthiouracil once your condition is controlled. Soy: Does it worsen hypothyroidism? If the tumor is large, it may cause neck or facial pain, shortness of breath, difficulty swallowing, cough unrelated to a cold, hoarseness or voice change.
After that, some damage to your thyroid may cause it to become underactive. Has no currently accepted medical use in treatment in the United States. The thyroid is a small gland in your neck that makes thyroid hormones. Main article: Postpartum thyroiditis. Hypothyroidism Brochure PDF.
Failure to comply mddications result in legal action. If you are seeing an endocrinologist, ask that copies of your reports be sent to your primary care doctor. Appropriate education should allay fears that are commonly present in these women. Medicines such as amiodarone, lithium, interferon alpha, and interleukin-2 can prevent the thyroid gland from being able to make hormone normally. Untreated hyperthyroidism, when severe, may adversely affect the pregnancy.
Anti-thyroid medicine may hypothyroidism and pregnancy webmd medications cause low levels of thyroid hypothyroidism in the developing mdications and newborn. Accessed June 29, Your doctor may tell you to take propylthiouracil during the first months of your pregnancy only and then may switch you to methimazole for the rest of your pregnancy. Overview Hypothyroidism underactive thyroid is a condition in which your thyroid gland doesn't produce enough of certain crucial hormones.
Symptoms of mesications hypothyroidism and pregnancy webmd medications be vague and may be confused with other conditions. However, mild levels of maternal hyperthyroidism are often safe. Other signs and symptoms can suggest hyperthyroidism: fast and irregular heartbeat shaky hands unexplained weight loss or failure to have normal pregnancy weight gain What causes hyperthyroidism in pregnancy? Your doctor may prescribe levothyroxine to treat your hypothyroidism. By Erik K. View information about Euthyrox Euthyrox.
There is a lack of accepted safety for use under medical supervision. Join now. You may also need iodine supplements medications eat foods higher in iodine. Add review. Medicztions all in Getting Pregnant. The dose may be adjusted during your pregnancy. The following are the most common symptoms of hypothyroidism: Feeling tired Unable to stand cold temperatures Hoarse voice Swelling of the face Weight gain Constipation Skin and hair changes, including dry skin and loss of eyebrows Carpal tunnel syndrome hand tingling or pain Slow heart rate Muscle cramps Trouble concentrating Irregular menstrual periods The symptoms of hypothyroidism may resemble other conditions or medical problems.
You need to stay on the same medicine during pregnancy that you were taking before. Generic name: levothyroxine systemic For hypothyriodism dosageinteractionsside effects For professionals: Prescribing Information. If very sensitive imaging techniques ultrasound are used, it is possible to detect an increase in thyroid volume in some women. Digestive system Acute fatty liver of pregnancy Gestational diabetes Hepatitis E Hyperemesis gravidarum Intrahepatic cholestasis of pregnancy. If you start seeing a new doctor, tell the doctor that you have hypothyroidism and you need your TSH tested every year.
Fad Diets During Pregnancy. Keep this medication in the container it came in, tightly closed, hypothyoridism out of reach of children. However, a good fetal and maternal outcome depends upon controlling the mother's hyperthyroidism. Sometimes this process involves your thyroid gland. Ferri FF. Thyroid Cancer Guide A neck lump or nodule is the most common symptom of thyroid cancer.
Dosage of thyroid hormone replacement therapy is based on the individual's levels of thyroid hormones. Current guidelines suggest that a pregnant patient should be on PTU during the first trimester of pregnancy due to lower tetragenic karukayado hashimoto s hypothyroidism and then hypothyroidiwm switched to methimazole during the second and third trimester due to lower liver dysfunction side effects. Too much or too little iodine. Appropriate education should allay fears that are commonly present in these women. It's not uncommon for Graves' disease to flare up in the postpartum period. If very sensitive imaging techniques ultrasound are used, it is possible to detect an increase in thyroid volume in some women. Taking in too much iodine can cause or worsen hypothyroidism.
Endocrine Community. When you first start taking prescription thyroxine hormones, your doctor will prescribe a dosage based on your blood test results. However, abd do suggest thyroidectomy in hyperthyroid women during pregnancy when thioamides thyroid drugs are not tolerated due to allergy or blood disorders such as agranulocytosis. Fetal risks include low-birth-weight infants, induced fetal hypothyroidism, and fetal thyrotoxicosis. Instead, the best way to dispose of your medication is through a medicine take-back program. Synthetic T4 Hormones to Replace Insufficient Thyroid Hormones Hypothyroidism is most commonly treated with thyroid hormone replacement therapy, and the most effective way to treat hypothyroidism is with synthetic T4 medication.
Patient Guide to Osteoporosis Prevention If you are like many people, you may think that osteoporosis—a condition marked by low bone mineral density, which leads to lowered bone strength and a heightened risk of hypothyrlidism something you will not have to worry about until later in life. Hypohhyroidism not stop taking medications without talking to your doctor. Over time, untreated hypothyroidism can cause a number of health problems, such as obesity, joint pain, infertility and heart disease. Propylthiouracil is used to treat hyperthyroidism a condition that occurs when the thyroid gland produces too much thyroid hormone, speeding the body's metabolism, and causing certain symptoms in adults and children 6 years of age or older. While patients with thyroid disease are often careful to eat a diet low in iodine which can worsen hypothyroidism once a patient has itor to take vitamin D or calcium supplementation, no diet or nutrient can cure thyroid disease.
Most Recent in Hypothyroidism
At the visit, write down the name of a new diagnosis, and any new medicines, prengancy, or tests. There are pregnancy webmd number of hyperthyroidism treatments available. Some people who took propylthiouracil needed liver transplants and some people died because of the liver damage. They also do not recommend nonradioactive iodine for long-term use because chronic use can cause fetal goiter. Feb ; 2
A webmd medications diagnosis can be at once upsetting and relieving. Continue to take propylthiouracil even if you feel well. Treatment options for pregnant women with overt hyperthyroidism are limited because therapy may be harmful to the fetus. Breakfast, lunch, dinner—even an afternoon snack and a yummy dessert. Keep all appointments with your doctor and the laboratory. The recommended daily amount of iodine is micrograms mcg per day for adults older than With hypothyroidism, iodine can either cause too much thyroid hormone or a suppression of thyroid hormones.
Thyroiditis can make the thyroid dump its whole supply of stored thyroid hormone into the blood at once, causing brief hyperthyroidism too much thyroid activity ; then the thyroid becomes underactive. Your heart rate may be checked as well as your knee and ankle reflexes to see if they respond more slowly. Some risks also appear to be higher in women with antibodies against thyroid peroxidase TPO. Children born with congenital hypothyroidism no thyroid function at birth can have severe cognitive, neurological and developmental abnormalities if the condition is not recognized and treated promptly. Stop your antithyroid medicine and call your doctor right away if you develop any of these symptoms while taking antithyroid medicines:. For consumers: dosageinteractionsside effects.
Hypothyroidism in Pregnancy Medically reviewed by Drugs. Gestational pemphigoid Impetigo herpetiformis Intrahepatic cholestasis of pregnancy Linea nigra Prurigo gestationis Pruritic folliculitis of pregnancy Pruritic urticarial papules and plaques of pregnancy PUPPP Stretch marks. Hypothyroidism is a condition that develops when the thyroid gland makes little or no thyroid hormone. Has a currently accepted medical use in treatment in the United States. Home » Hypothyroidism in Pregnancy. Thyroxine T4 levels rise from about 6—12 weeks, and peak by mid-gestation; reverse changes are seen with TSH.