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Doctor insights on: Can Prozac Cause Hypothyroidism

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Dr. Heidi Fowler
1,053 doctors shared insights

Fluoxetine (Definition)

Fluoxetine (brand prozac) is an antidepressant in the class known as serotonin selective reuptake inhibitors aka ssris. Fda approved in 1987 for the treatment of major depressive disorder. Subsequently approved for obsessive compulsive disorder, bulimia nervosa, panic disorder, and premenstrual dysphoric disorder. Significantly safer and much better ...Read more


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I have a family history of hypothyroidism and a brief personal history with thyroid issues. Can Prozac (fluoxetine) adversely affect my thyroid?

I have a family history of hypothyroidism and a brief personal history with thyroid issues. Can Prozac (fluoxetine) adversely affect my thyroid?

No effect on thyroid: Hi. Fluoxetine (Prozac) has no effect on thyroid function or autoimmunity. Nevertheless, I trust your doc follows your thyroid function periodically and anytime something seems wrong. Good luck! ...Read more

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Is 20mg prozac (fluoxetine) safe during pregnancy? Not pregnant yet, but maybe in the future. ITP, hypothyroidism, anxiety. On 50mcg levothyroxine and 20mg prozac (fluoxetine)

Is 20mg prozac (fluoxetine) safe during pregnancy? Not pregnant yet, but maybe in the future. ITP, hypothyroidism, anxiety. On 50mcg levothyroxine and 20mg prozac (fluoxetine)

Category C: Risk can't be ruled out but pretty low-- it's been around longer than all the other Ssris & no major problems noted--most ons in our area okay it the pts I've followed were ok through their pregnancies ...Read more

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What can cause hypothyroidism?

What can cause hypothyroidism?

Autoimmune, surgery: The most common cause is autoimmune thyroid disease, that is, the body makes antibodies against the thyroid. Thyroid surgery can cause it too. So can radiation therapy to the neck. Meds like amiodarone and some chemo can, too. ...Read more

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What's the primary cause of hypothyroidism?

What's the primary cause of hypothyroidism?

Several: But the most common is thyroid inflammation which damages the thyroid's ability to make sufficient hormone. Luckily, it's easy to diagnose and treat with brand name T4 replacement and it's like you never had a problem in the first place. See your doctor. ...Read more

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Can hypothyroidism cause migraines?

Can hypothyroidism cause migraines?

Probably not: I can't think of any relationship between the two. ...Read more

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How does hypothyroidism cause siadh?

How does hypothyroidism cause siadh?

Likely complex...: Thyroid hormones have complex interactions with many parts of the whole body. Hypothyroidism can lead to hyponatremia or to both SIADH + hyponatremia. Being low in thyroid hormone can somehow lead to the release of anti-diuretic hormone from the pituitary gland, so one gets SIADH and the accompanying excess water in the body. ...Read more

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Are missed heartbeats caused by hypothyroidism?

Are missed heartbeats caused by hypothyroidism?

Usually not: Unless it's very severe. Besides, hypothyroidism is very easy to treat with a daily dose of brand name T4 replacement. Check w/your doctor, don't leave it untreated. ...Read more

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Does hypothyroid cause brittle hair?

Does hypothyroid cause brittle hair?

May: Thyroid disease can cause many changes in your hair, including fragile brittle hair. ...Read more

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What causes congenital hypothyroidism?

What causes congenital hypothyroidism?

Underdevelopment...: Congenital thyroid dysplasia, poor development of thyroid gland in utero, leads to congenital hypothyroidism. ...Read more

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Why does hypothyroidism cause cold feet?

Hypothyroidism: Hypothyroidism can slow down your pulse rate and your blood supply. If you are already being treated for hypothyroidism make an early appointment to see your doctor and change your thyroid dose ...Read more

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Could hypothyroidism too cause hirsutism?

Could hypothyroidism too cause hirsutism?

Why ask?: You already have PCOS which is a common cause of hirsutism. You are already taking 2 meds which are likely to help. The ginette 35 might al;so help. Hypothyroid often causes loss of scalp hair but is not a common cause of hirsutism. You neglected to mention the doses. This can be important. Have you been checked for thyroid? You do not list any med related to thyroid. ...Read more

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Is pitting edema caused by hypothyroidism?

Is pitting edema caused by hypothyroidism?

Possible: There are man causes of pitting edema. Most associated with capillary leakage of some sort in the extremities. This is often associated with cardiac dysfunction. However, there are many causes. Hypothyroidism in severe form is one of these causes. However, for specific information consult your doctor for more details. ...Read more

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What skin problems can hypothyroidism cause?

What skin problems can hypothyroidism cause?

Skin: If you do not take your thyroid medicine daily you are very likely to have dry skin. You surely don't want that to happen. ...Read more

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How does Prozac (fluoxetine) cause impotence?

How does Prozac (fluoxetine) cause impotence?

Ssri sexual dysfunct: Medications that affect serotonin ssri, like Prozac (fluoxetine) can reduce sexual interest (libido) and cause delayed orgasm. It is uncommon to cause erectile dysfunction except for just loss of interest. These meds help people feel content which may be the reason they are satisfied with less sex. There are several things that can be done to help. Talk with your prescriber about alternative treatments. ...Read more

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Is my depression caused by my hypothyroidism?

Yes: Yes, depression is one of the symptoms of low thyroid function. In this case, it often gets better with treatment of the hypothyroidism. ...Read more

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Can Hypothyroidism medication cause depression?

Can Hypothyroidism medication cause depression?

Uncommonly yes: I'm not sure WHICH medication you're referring to but if we just hazard a guess and say, "LEVOTHYROXINE" then, in rare instances this medication has been reported to cause mental depression in patients. Typically though, when used in therapeutic doses to treat hypothyroidism one usually experiences a bit of a lift in mood (if they've been truly HYPO-thyroid) for some time. ...Read more

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Will depression medicines cause hypothyroidism?

Will depression medicines cause hypothyroidism?

Specific: There are many types of antidepressants. Please re-ask and let us know specific medication you are concerned about. Thanks. ...Read more

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Can Prozac (fluoxetine) cause urinate problems?

Can Prozac (fluoxetine) cause urinate problems?

Usually not: It may interact with other drugs such as antihistamines
and the contribute to urinary retention. ...Read more

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What causes a high platelet count and hypothyroid?

No one thing: No one thing would cause both of the conditions listed. However, in women, hypothyroidism can cause long heavy periods, which, over time, could lead to iron deficiency. Too many platelets is a common finding in iron deficiency anemia, and so it could be indirectly related to the hypothyroidism. However, too many platelets can have other causes as well, so it's best to ask your own doc about this. ...Read more

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How often does hypothyroidism really cause obesity?

How often does  hypothyroidism really cause obesity?

Depends on degree: Very low thyroid function results in low metabolism that can contribute to obesity. However, obesity is not always present in hypothyroidism as obesity is a factor of other things as well such as the type and amount of foods you eat. ...Read more

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How often could Prozac (fluoxetine) cause weight gain?

How often could Prozac (fluoxetine) cause weight gain?

Infrequently: I can't give you exact statistics but more people don't gain weight than do. But if you are one who craves sweets, ice cream and chocolates on prozac, (fluoxetine) talk to your doc about an alternative drug. Gaining weight rarely helps depression, does it? ...Read more

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Why does hypothyroidism cause canida (yeast) overgrowth?

Why does hypothyroidism cause canida  (yeast) overgrowth?

It doesn't: Hi. Correlation does not establish cause-and-effect. Having hypothyroidism ( a fairly common condition) and a yeast infection (another fairly common condition) is nothing more than a coincidental correlation, not a cause-and-effect relationship. Treat BOTH! Good luck! ...Read more

Dr. Su Fairchild
1,248 doctors shared insights

Hypothyroidism (Definition)

When the thyroid gland is overactive and too much thyroid hormone is produced, which speeds up metabolism. This results in weight loss, a quick heartbeat, sweating, nervousness, ...Read more


Dr. Alan Ali
774 doctors shared insights

Prozac (Definition)

Prozac is a serotonin reuptake blocker which is a kind of ...Read more