Top
30
Doctor insights on: How Long Do The Side Effects Of Fluoxetine Last

Share
1

1
How long do the side effects of fluoxetine last?

How long do the side effects of fluoxetine last?

Several weeks: The side effects of fluoxetine can last more than 2 weeks, because the drug is transformed into an active metabolite norfluoxetine which takes that long to clear half of it from the body. It takes 1-2 months to clear most of it from the body. It may take longer than 2 months to stop having withdrawal symptoms, especially in the elderly, and those with liver disease or drug-drug interactions. ...Read more

Dr. Heidi Fowler
1,057 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


2

2
How long will the side effects of fluoxetine last?

How long will the side effects of fluoxetine last?

As always, it depends.: In most cases, when starting an antidepressant side effects will resolve within a few days to a couple of weeks. Fluoxetine can actually take up to a month to clear most of the drug from your system, so if you're stopping the medication side effects can linger for quite a while. ...Read more

3

3
How long do fluoxetine side effects last?

Depends: Most minor side effects of fluoxetine resolve in two weeks or less. If they persist after this it may be time to consider changing medications. However, only your prescriber would have the information necessary to help you make this decision. If you have concerns, please contact him/her. ...Read more

4

4
How long do fluoxetine side effects last for?

How long do fluoxetine side effects last for?

Depends: Most people do not experience uncomfortable side effects. Of those that do many find that the side effects abate in a month or so. For some they never go away. Discuss this with your physician as he/she knows more about your health status and can provide more specific information. ...Read more

5

5
How long should fluoxetine side effects last?

Depends: The common initial side effects of fluoxetine (dry mouth, upset stomach, nausea, constipation or diarrhea) should go away after two weeks. If they persist, let your doctor know. Other side effects like blurred vision, sweating, sexual side effects can also fade over time, but again, if they last more than two weeks or affect you adversely, talk to you doctor. ...Read more

6

6
How long do fluoxetine side effects last? Heard long half life.

Usually 1-2 weeks: The amount of time it takes for side effets to go away is how long it takes certain receptors to change and thus get used to the effect. This is somewhat independent of how long the drug takes to go away, so long as the concentration remains constant. The half life means that the drug stays in the system a long time and is important when mixing other drugs with it. ...Read more

Dr. Alan Ali Dr. Ali
1 doctor agreed:
7

7
What are the side effects of coming off of prozac (fluoxetine)? How long do they last?

Dr. Alan Ali Dr. Ali
1 doctor agreed:
What are the side effects of coming off of prozac (fluoxetine)? How long do they last?

Prozac (fluoxetine): Prozac (fluoxetine) has long half-life, but some withdrawal can still occur within 3-7 days of discontinuing the medication. Can last average of 1 week. Refer to my previous answer on Prozac (fluoxetine) Discontinuation. ...Read more

8

8
How long does the side effects lasts for fluoxetine 20mg? I've been taking it once a day for 2 days now. I take it for clinical depression & bpd.

Borderline PD?: Fluoxetine is a very long-acting medication -- its half-life is 70 hours and that of its main metabolite, norfluoxetine, is 330 hours. This means it will take several weeks to reach steady-state in your system, and that any side effects could take at least a couple of weeks to dissipate. Fluoxetine is usually well-tolerated and can help both depression and aggression common in bordeline pd. ...Read more

9

9
Do the side effects of fluoxetine get less bothersome the longer I take it?

Do the side effects of fluoxetine get less bothersome the longer I take it?

Yes most do: Most fade as the positive effects kick in--sexual side effects usually don't however. ...Read more

10

10
How long for initial Prozac (fluoxetine) side effects to go away?

2-3 days: If the side effect is drowsiness this should pass - if not then it may need to be changed - if another side effect speak with your doctor. ...Read more

11

11
How long for side effects to go away after decreasing prozac (fluoxetine) from 80 to 60? Was on 80 for a month and went back down due to side effects

Within 10 days: If you are a typical metabolizer, prozac (fluoxetine) will reach a new steady state in about 10 days -two weeks.

Most side effects are dose dependent and will decrease as the blood levels go down. ...Read more

12

12
I just started prozac (fluoxetine). I have been feeling funny. How long before Prozac (fluoxetine) takes effect and what are the side effects if prozac (fluoxetine)?

Please tell doc: I don't know what you mean by funny, but sometimes at the beginning of treatment, anxiety symptoms can appear. These can feel strange until you get used to the medication. Other typical symptoms include headaches, gastrointestinal upset, rare suicidal thinking in your age group, and a manic reaction. Tremors can also occur. Rashes are rare. Refer to the pharmacy handout for further info. ...Read more

13

13
What are the long term side effects of using prozac (fluoxetine)? I currently use it for my depression.

What are the long term side effects of using prozac (fluoxetine)? I currently use it for my depression.

There are issues: I agree with dr. Lindenbaum about prozac's relative safety, but there are issues in some people. You may never experience any problem, and your doctor may have prescribed it appropriately (for moderate to severe depression). But some have had movement disorders or "tics" develop - which may or may not go away. You may want to read dr. Joseph glenmullen's well-researched book "prozac backlash.". ...Read more

15

15
How long for side effects or allergic reaction to the fluoxetine if just took it this morning? Cause still have side effects of citalopram.

Can't be sure: It depends on the type of reaction. If this was the first time you took fluoxetine, I would not expect allergic sensitization to develop until about 10 or more days later. If you have GI upset from it, then the reactions can happen within 15-30 minutes but others can occur hours later. ...Read more

16

16
How long for Prozac (fluoxetine) start up side effects (anxiety, insomnia)to go away? Started at 10, up 10mg a week for two months, been at 80 just over four weeks

How long for Prozac (fluoxetine) start up side effects (anxiety, insomnia)to go away? Started at 10, up 10mg a week for two months, been at 80 just over four weeks

Talk to your doctor: Unless the condition being treated is OCD, a dose of 80 mg/day of Prozac (fluoxetine) is excessive.
For depression or anxiety, a dose of 20 to 40 mg/day for more than 4 weeks is considered an adequate therapeutic trial for Prozac (fluoxetine). If primary symptoms have not resolved at this dose/duration, it's prudent to re-assess the diagnosis and to consider at a different treatment strategy. ...Read more

17

17
I am on Prozac (fluoxetine) 20 mg for OCD and depression 18 days so far how long does the side effects need to go?

I am on Prozac (fluoxetine) 20 mg for OCD and depression 18 days so far how long does the side effects need to go?

Longer: Early side effects can take weeks or more to resolve. If bad side effects, dose lower (5mg/day for 1 week ; increase at that rate to limit side effects and reach the same dose and tolerate it better! Most side effects do resolve. Talk with your doctor. ...Read more

18

18
Dr wants to put my 16yr old on Prozac (fluoxetine) for selective mutism. Worried about side effects and long term effects? Does it stunt growth? Risks vs benefits?

Dr wants to put my 16yr old on Prozac (fluoxetine) for selective mutism. Worried about side effects and long term effects? Does it stunt growth? Risks vs benefits?

Prozac (fluoxetine): It inhibits reuptake of serotonin, hence increases available serotonin. No effect o growth. Initial side-effects mainly nausea & headaches & some irritability. Benefits is that it can help moods & anxiety. ...Read more

19

19
What are the side effects of fluoxetine (fludac 10mg)?

What are the side effects of fluoxetine (fludac 10mg)?

Prozac (fluoxetine): Headaches, stomach upset, nausea, diarrhea are common. Also sexual side effects such as impotence later on. ...Read more

20

20
Should I persevere past the side effects of fluoxetine?

Possibly: Most side effects go away in a few weeks or less. If the side effects are mild and not extremely uncomfortable you probably should try to tolerate them. However, your best advise will come from the doctor who prescribed this for you as he/she knows your situation and can make a more informed judgment. ...Read more

21

21
Can the side effects of fluoxetine include constant mood changes?

Can the side effects of fluoxetine include constant mood changes?

Possibly: Some individuals can experience restlessness, anxiety or sleep impairment on starting an antidepressant which could lead to an increase in moodiness. If exposure to the antidepressant is actually causing significant mood instability, you should call the prescribing physician. This could represent bipolarity. ...Read more

22

22
Hello. I'm using fluoxetine every morning. What are side effects? Does it decrease my sexual stamina? What are the side effects of fluoxetine use?

Hello. I'm using fluoxetine every morning. What are side effects? Does it decrease my sexual stamina? What are the side effects of fluoxetine use?

Prozac (fluoxetine) side effects: Common side effects with Prozac (fluoxetine) may be nausea, diarrhea, loss of appetite, dizziness, sweating, anxiety, insomnia, and changes in libido. Some also notice difficulty coming to sexual climax. Many of these may dissipate with time, but the sexual issues may persist. Talk with your doctor if any of these are happening with you. ...Read more

23

23
Side effects of prozac (fluoxetine)?

Side effects of prozac (fluoxetine)?

Prozac (fluoxetine): Common ones are headaches, nausea & loose stools. ...Read more

24

24
Which are the side effects from fluoxetine?

Which are the side effects from fluoxetine?

Wt gain, libido loss: There are additional potential adverse effects, but weight gain and adverse sexual effects are among the most common and most troubling. ...Read more

25

25
What are the side effects of prozac (fluoxetine)?

Prozac (fluoxetine) Side Effects: May include: decreased appetite, nausea, diarrhea, constipation, upset stomach, GI bleeding, weight loss or weight gain, insomnia, ^ anxiety or irritability, tremor, headaches, drowsiness, sexual dysfunction, decreased libido, triggering mania, hypomania, psychosis or OCD, hair loss, allergic reaction, hyponatremia, bruising, etc. There is an FDA warning for possible ^ in suicidal ideations. ...Read more

26

26
What are the side effects of prozac (fluoxetine)?

Prozac (fluoxetine): There can be many: headache, light-headedness, nausea, bloating and gas, vivid dreams, fatigue, and others. Many, if not all of these are transitory and likely won't occur all at once. ...Read more

27

27
What are side effects starting Prozac (fluoxetine)?

See S-E list below: Notable side effects-sexual dysfunction, delayed ejaculation, erectile dysfunction, GI -decrease appetite, nausea, diarhea, constipiation, dry mouth. CNS insomnia or sedation, atgitation, tremors, headaches, dizziness. BPD pts. Vulnerable to CNS activation. Most side effects-- immediate but often go away wi/time.
Life threatening --seizures, mania, rare activation of suicide ideation/behavior ...Read more

28

28
Prozac (fluoxetine) 10mg. What are the side effects?

Prozac (fluoxetine) 10mg. What are the side effects?

It depends.: Adverse effects can be seen with low doses of fluoxetine. The most common are: insomnia, nausea, weakness, headache, diarrhea, loss of appetite, drowsiness, anxiety, tremor, dry mouth, decreased sex drive, sweating, dizziness, . ..The list goes on. Adverse effects are not very predictable and at low doses not as probable. Some may occur later in the course of treatment with fluoxetine. ...Read more

30

30
What are the potential side effects of prozac (fluoxetine)?

What are the potential side effects of prozac (fluoxetine)?

Prozac (fluoxetine) Side Effects: May include: decreased appetite, nausea, diarrhea, constipation, upset stomach, GI bleeding, weight loss or weight gain, insomnia, ^ anxiety or irritability, tremor, headaches, drowsiness, sexual dysfunction, decreased libido, triggering mania, hypomania, psychosis or OCD, hair loss, allergic reaction, hyponatremia, bruising, etc. There is an FDA warning for possible ^ in suicidal ideations. ...Read more

Dr. Alan Ali
778 Doctors shared insights

Prozac (Definition)

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