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Doctor insights on: What To Expect The First Week On Prozac

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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


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I've been on prozac (fluoxetine) for 10 weeks now - 10mg for the first 7, and 20mg for the past 3. Helped anxiety at first, but not anymore. Stick it out longer?

I've been on prozac (fluoxetine) for 10 weeks now - 10mg for the first 7, and 20mg for the past 3. Helped anxiety at first, but not anymore. Stick it out longer?

Or go higher: Takes Prozac (fluoxetine) 4-6 was to start working (most SSRIs 2-3 was) dosage range 20-80 mg-- If you felt it helped initially I'd say stay with it. ...Read more

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I just started Prozac (fluoxetine) (10mg) half dose for my first 2 weeks. I've noticed my right eye only is opening halfway is this related to Prozac (fluoxetine) in anyway?

UNLIKELY: I'VE BEEN PRESCRIBING PROZAC (fluoxetine) FOR 40 YEARS AND THIS IS A SIDE EFFECT I'VE NEVER RUN INTO. IT MAY POSSIBLY BE THE PROZAC (fluoxetine), BUT PROBABLY NOT. BE SURE BY STOPPING THE PROZAC (fluoxetine) (IT WILL BE OUT OF YOUR SYSTEM IN ABOUT A MONTH). OTHERWISE A NEUROLOGICAL CONSULT WOULD BE APPROPRIATE. ...Read more

Dr. Alan Ali Dr. Ali
2 doctors agreed:
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I've just been prescribed Prozac (fluoxetine) for the first time for bpd. What can I expect?

Dr. Alan Ali Dr. Ali
2 doctors agreed:
I've just been prescribed Prozac (fluoxetine) for the first time for bpd. What can I expect?

Prozac (fluoxetine): Prozac (fluoxetine) helps vegetative symptoms of depression and anxiety. Initially it might cause some headache and stomach upset. ...Read more

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I am switching from Zolft to Prozac (fluoxetine). I am on my first day at 75mg. Will take this 5 days then decrease by 25mg until none. When can I start Prozac (fluoxetine)20mg?

Check with doctor: It would be safe to start the prozac when you get to 25 mg of zoloft (sertraline). However, it is best that you check with the doctor prescribing these medicines as they know your complete history and other medications. ...Read more

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Is there a way to go off cymbalta (duloxetine) by just switching completely over to Prozac the first day and continuing with prozac?

Is there a way to go off cymbalta (duloxetine) by just switching completely over to Prozac the first day and continuing with prozac?

To avoid: Ssri discontinuation symptoms while making the change - a cross titration could be useful. In other words, reducing the dose of one while increasing the dose of the other. And doing this progressively until you are off the first medication and you get to the target dose of the second medication. ...Read more

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Tuesday was my last dose of 50mg of Paxil after eighteen years on, Thursday morning was my first dose of Prozac 60mg, would withdraw start today sat.?

Tuesday was my last dose of 50mg of Paxil after eighteen years on, Thursday morning was my first dose of Prozac 60mg, would withdraw start today sat.?

Can be immediate: In particular after being on the Paxil for so long, the serotonin discontinuation can be immediate and very intense. Even if another serotonin agent is substituted - like Prozac - it typically does not reduce symptoms.
It might be best to very gradually taper the Paxil even after instituting the Prozac. ...Read more

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Upped Prozac (fluoxetine) from 20mg to 40mg, in order to help getting of Valium. Experiencing more anxiety first 2 days, but this is normal right? Could it help?

Upped Prozac (fluoxetine) from 20mg to 40mg, in order to help getting of Valium. Experiencing more anxiety first 2 days, but this is normal right? Could it help?

Medication Effects: I commend you wanting to get off Valium if it had become habit forming.
Of course you deserve relief from Anxiety.
Valium is for Anxiety.
Prozac (fluoxetine) is for depression, it can help with anxiety.
Increasing Prozac (fluoxetine) from 20mg/day to 40mg/day is likely causing anxiety.
See a Psychiatrist for diagnosis, need for medication, dose, benefits and side effects, Therapy, Breathing Relaxation, and Visual Imagery. ...Read more

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I have been taking Prozac (fluoxetine) for my depression for the first couple of months I was even more unstable and very suicidal. What would have caused this?

I have been taking Prozac (fluoxetine) for my depression for the first couple of months I was even more unstable and very suicidal. What would have caused this?

Antidepressants: Not all antidepressants are for everyone. Your psychiatrist will help you select the right medication for you. We can not pinpoint what the exact cause was in your particular case. A black box warning exist for some antidepressants, mentioning situation like the one you describe. Discuss it with your dr. ...Read more

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First few days on 20 mg of Prozac (fluoxetine) cause drowsiness (i.E., feeling sleepy during the day despite 8-9 hours of sleep). Could this subside eventually?

First few days on 20 mg of Prozac (fluoxetine) cause drowsiness (i.E., feeling sleepy during the day despite 8-9 hours of sleep). Could this subside eventually?

Side effects usually: Subside in 1-3 weeks. If you take the medication in the morning and feel sleepy during the day, try taking it at night and see if that reduces the daytime sleepiness. If it does not subside your prescriber may reduce the dose for a while and increase later when the side effect subsides. If it becomes intolerable and does not subside then an alternative medication may be necessary. Best regards. ...Read more

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My 11 years child has moderate anxiety. His Pediatrician wrote Prozac (fluoxetine). We are hesitant to use. Should we consult Psychiatric first. How safe is Proza?

My 11 years child has moderate anxiety. His Pediatrician wrote Prozac (fluoxetine). We are hesitant to use. Should we consult Psychiatric first. How safe is Proza?

Ok: Prozac (fluoxetine) is a relatively safe anxiety medicine that has been largely used for quite some time. Compared with other medicines, this is less addictive, less dangerous and more tolerable side effects. A face to face conversation with your doctor on why Prozac (fluoxetine) would be the choice would be recommended. A second opinion with a psychiatrist could also be beneficial. Good luck. ...Read more

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Can diarrhea affect the absorption of my Prozac (fluoxetine)? I have bad anxiety and depression like I did when I first started it.

Can diarrhea affect the absorption of my Prozac (fluoxetine)? I have bad anxiety and depression like I did when I first started it.

I doubt diarrhea: Would affect absorption of prozac (fluoxetine), (fluoxetine)unless its profuse diarrhea right after you take it. It may be that the prozac (fluoxetine) is no longer working for you. Talk to your Dr about this, especially if the diarrhea persists. ...Read more

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Which SSRI is best to treat Anxiety/OCD in children. I heard Prozac (fluoxetine) can increase it at first. Is it best choice for anxoius but not depressed but kids?

Which SSRI is best to treat Anxiety/OCD in children. I heard Prozac (fluoxetine) can increase it at first. Is it best choice for anxoius but not depressed but kids?

No SSRI is "best": Medication choices for children are limited. Prozac (fluoxetine) is one that has been approved for Pediatric use and can be effective for both anxiety and depression. A Child Psychiatrist is best equipped to evaluate and decide on the medication needed. The risks of certain dangerous side effects are greater in children and young adults. I hope this helps. ...Read more

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Which would you try first for binge eating if wellbutrin (bupropion) didn't work. Prozac or Zoloft? Which has better results and which is safer?

Which would you try first for binge eating if wellbutrin (bupropion) didn't work. Prozac or Zoloft? Which has better results and which is safer?

Several options.: Generally speaking Prozac (fluoxetine). However, I do not know the source of your problem. I would suggest you get with a mental health professional and figure this out. In addition, many people with this problem have been helped by Overeaters Annomous. ...Read more

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I have insomnia and mild depression. I was just prescribed. 5 Klonopin and 10mg Elavil at bed time for sleep and 20 MG Prozac in the morning. My question is, since they are all 3 antidepr. Would you suggest I try Klonopin and Elavil first or all 3?

I have insomnia and mild depression. I was just prescribed. 5 Klonopin and 10mg Elavil at bed time for sleep and 20 MG Prozac in the morning. My question is, since they are all 3 antidepr. Would you suggest I try Klonopin and Elavil first or all 3?

It depends upon: Upon several factors, and without knowing more about you it’s hard to say. You may wish to speak to your prescriber and ask these specific questions.
Prozac and Elavil are different types of antidepressants, and Klonopin (clonazepam) is a benzodiazepine; none of them are specifically for insomnia, but may cause sedation which may be why you were instructed to take them at night.
Good luck! ...Read more

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How will I know Prozac (fluoxetine) is working? I have taken it two weeks.

How will I know Prozac (fluoxetine) is working? I have taken it two weeks.

2 to 6 Weeks: Your medication is working when your treatment goals for are being met. For example, if your your goals include being motivated to get out of bed each morning and performing certain tasks: then you would find it easier to get up each day and easier to complete the tasks. Most patients begin to feel better after two weeks. But for some it may take up to six weeks. Be patient and talk to your md. ...Read more

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Been taking 20mg of Prozac for 5 years last few weeks been taking every other day is that fine?

Why are you changing: How you are taking the dosage? Is it no longer working or experiencing side-effects? I may noy hurt but I would not change my dosage schedule unless it's ok 'd by the doctor. Since you been on it a while you don't want to disrupt your baseline. ...Read more

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How long would it take for 5mg of Prozac (fluoxetine) to leave my system if I've been taking it for 5 weeks?

How long would it take for 5mg of Prozac (fluoxetine) to leave my system if I've been taking it for 5 weeks?

Prozac (fluoxetine): Is sometimes used on a temporary basis to minimize the affects of coming off other SSRI agents (yes there are SSRI withdrawal symptoms) Prozac (fluoxetine) is typically given in the 10-20 mg dose for this purpose for a 7-14 days. At 5 mg discontinuation after 5 weeks would require about 5-8 days. (depending on renal function) ...Read more

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Could it be healthy to be on Prozac (fluoxetine) for at least 3 weeks and have the same problems as well as new problems?

Could it be healthy to be on Prozac (fluoxetine) for at least 3 weeks and have the same problems as well as new problems?

Possibly: It often takes 4 to 6 weeks to get high enough serotonin levels for Prozac (fluoxetine) to be effective. However, it is likely that side effects could be apparent much earlier. ...Read more

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Could Prozac (fluoxetine) side effects still be there 3 weeks in?

Medication se: Yes. It can take a few weeks (even up to6) for patients to get used to any medication. If you suffer from side effects, please follow up with your prescriber to discuss them. They can help to determine if the symptoms are indeed from the medication, are expected or otherwise. ...Read more

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Been off Prozac (fluoxetine) for 3 weeks can I now take black cohosh and ginkobiloba?

Herbal medicine: In general the recommendation is to be 3 weeks of prozac (fluoxetine). But I would suggest to consult with an herbal medicine doctor before you take any of the herbal medications. ...Read more

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Taking 20 mg of Prozac (fluoxetine) for 10 weeks in the morning makes me very tired can I take a couple of hours before bedtime?

Taking 20 mg of Prozac (fluoxetine) for 10 weeks in the morning makes me very tired can I take a couple of hours before bedtime?

Yes: If Prozac (fluoxetine) makes you drowsy but otherwise is helping, try taking a few hours before bedtime. Discuss with prescribing doctor who knows you best. Be sure to take same time every 24 hours. I hope this helps. Best wishes. ...Read more

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I fotgot to take my prozac (fluoxetine).for 2 weeks, I now am feeling anxious is this from forgeting my med. I have been on it for years?

I fotgot to take my prozac (fluoxetine).for 2 weeks, I now am feeling anxious is this from forgeting my med. I have been on it for years?

Anxiety: Your list of conditions shows you have an anxiety disorder. Your increased anxiety may be for two reasons. The first is that you are no longer benefitting from the effect of the prozac. The second reason is that your body may having a reaction from abruptly coming off this medication. That can happen with the SSRI class of medications. ...Read more

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After 6 weeks on Prozac (fluoxetine) for anxiety I feel better but far from noramal, is this the best it will get? Or will it continue to improve?

After 6 weeks on Prozac (fluoxetine) for anxiety I feel better but far from noramal, is this the best it will get? Or will it continue to improve?

Yes, it will.: You will enhance the effect of Prozac (fluoxetine) with individual psychotherapy where you learn techniques of relaxation and ways of dealing with situations which trigger your anxiety. ...Read more

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I feel awful three weeks into discontinuing my Prozac (fluoxetine) and another anti depressants. Is this normal and is there a way to alleviate it?

Discontinuance?: Prozac (fluoxetine) has a long half life & infrequently causes a discontinuance syndrome when stopped--if this is what you are experiencing a small dose of Prozac (fluoxetine) should relieve your symptoms ...Read more

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Is it normal to feel nervous sometimes when taking 20 mg Prozac (fluoxetine)? Like during a stressful week or when you have a lot to do for instance.

Is it normal to feel nervous sometimes when taking 20 mg Prozac (fluoxetine)? Like during a stressful week or when you have a lot to do for instance.

Prozac (fluoxetine) effects,: Prozac (fluoxetine) can cause anxiety and nervousness.
“stressful week or lot to do” can also cause anxiety.
Discuss with Psychiatrist:
•Intensity of Symptoms when Prozac (fluoxetine) was started and now
• Diagnosis-Anxiety, Depression, or both
• Therapy for stresses of relationships, separations, school, work, and finances
• Decrease dose of Prozac (fluoxetine)
• Breathing Relaxation
• Visual Imagery
• Meditation
Yoga
Tai Chi. ...Read more

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While tapering prozac, (fluoxetine) is it best to go from 20 to 15mg, then 10 and 5 and stop. Or going directly to 10mg and then zero after a few weeks.?

While tapering prozac, (fluoxetine) is it best to go from 20 to 15mg, then 10 and 5 and stop. Or going directly to 10mg and then zero after a few weeks.?

Tapering Prozac (fluoxetine).: Please do not stop your antidepressant without checking with the prescribing physician. Many conditions Prozac (fluoxetine) is used to treat tend to recur, especially if the medication i'd stopped too quickly. While it is often helpful to taper antidepressants, for Prozac (fluoxetine) this is not always necessary as it takes a week for half of Prozac (fluoxetine) and its metabolites to clear from your system and a month to fully clear. ...Read more

Dr. Alan Ali
778 Doctors shared insights

Prozac (Definition)

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