Talk to your doctor about using this medication safely. The liquid form of this medication contains alcohol. Caution is advised if you have diabetes , alcohol dependence , or liver disease. Some medications such as metronidazole , disulfiram can cause a serious reaction when combined with alcohol. Ask your doctor or pharmacist about using this product safely. Due to the large volume of distribution of this drug, forced diuresis, dialysis, hemoperfusion, and exchange transfusion are unlikely to be of benefit.

No specific antidotes for fluoxetine are known. A specific caution involves patients who are taking or have recently taken fluoxetine and might ingest excessive quantities of a TCA.

Its molecular weight is The structural formula is: Each capsule contains fluoxetine hydrochloride equivalent to 10 mg Mechanism of Action Although the exact mechanism of fluoxetine is unknown, it is presumed to be linked to its inhibition of CNS neuronal uptake of serotonin. Pharmacodynamics Studies at clinically relevant doses in man have demonstrated that fluoxetine blocks the uptake of serotonin into human platelets.

Studies in animals also suggest that fluoxetine is a much more potent uptake inhibitor of serotonin than of norepinephrine. Fluoxetine binds to these and other membrane receptors from brain tissue much less potently in vitro than do the tricyclic drugs. Food does not appear to affect the systemic bioavailability of fluoxetine, although it may delay its absorption by 1 to 2 hours, which is probably not clinically significant.

Thus, fluoxetine may be administered with or without food. The interaction between fluoxetine and other highly protein-bound drugs has not been fully evaluated, but may be important.

In animal models, both enantiomers are specific and potent serotonin uptake inhibitors with essentially equivalent pharmacologic activity. The S-fluoxetine enantiomer is eliminated more slowly and is the predominant enantiomer present in plasma at steady state. Metabolism — Fluoxetine is extensively metabolized in the liver to norfluoxetine and a number of other unidentified metabolites. The only identified active metabolite, norfluoxetine, is formed by demethylation of fluoxetine.

In animal models, S-norfluoxetine is a potent and selective inhibitor of serotonin uptake and has activity essentially equivalent to R- or S-fluoxetine.

R-norfluoxetine is significantly less potent than the parent drug in the inhibition of serotonin uptake. The primary route of elimination appears to be hepatic metabolism to inactive metabolites excreted by the kidney.

In a study involving labeled and unlabeled enantiomers administered as a racemate, these individuals metabolized S-fluoxetine at a slower rate and thus achieved higher concentrations of S-fluoxetine. Consequently, concentrations of S-norfluoxetine at steady state were lower. The metabolism of R-fluoxetine in these poor metabolizers appears normal.

When compared with normal metabolizers, the total sum at steady state of the plasma concentrations of the 4 active enantiomers was not significantly greater among poor metabolizers. Thus, the net pharmacodynamic activities were essentially the same. Alternative, nonsaturable pathways non-2D6 also contribute to the metabolism of fluoxetine. This explains how fluoxetine achieves a steady-state concentration rather than increasing without limit.

Accumulation and Slow Elimination — The relatively slow elimination of fluoxetine elimination half-life of 1 to 3 days after acute administration and 4 to 6 days after chronic administration and its active metabolite, norfluoxetine elimination half-life of 4 to 16 days after acute and chronic administration , leads to significant accumulation of these active species in chronic use and delayed attainment of steady state, even when a fixed dose is used [see Warnings and Precautions 5.

Norfluoxetine, however, appears to have linear pharmacokinetics. Its mean terminal half-life after a single dose was 8. Steady-state levels after prolonged dosing are similar to levels seen at 4 to 5 weeks.

The long elimination half-lives of fluoxetine and norfluoxetine assure that, even when dosing is stopped, active drug substance will persist in the body for weeks primarily depending on individual patient characteristics, previous dosing regimen, and length of previous therapy at discontinuation. This is of potential consequence when drug discontinuation is required or when drugs are prescribed that might interact with fluoxetine and norfluoxetine following the discontinuation of fluoxetine.

Specific Populations Liver Disease— As might be predicted from its primary site of metabolism, liver impairment can affect the elimination of fluoxetine. The elimination half-life of fluoxetine was prolonged in a study of cirrhotic patients, with a mean of 7. This suggests that the use of fluoxetine in patients with liver disease must be approached with caution. If fluoxetine is administered to patients with liver disease, a lower or less frequent dose should be used [see Dosage and Administration 2.

While the possibility exists that renally excreted metabolites of fluoxetine may accumulate to higher levels in patients with severe renal dysfunction, use of a lower or less frequent dose is not routinely necessary in renally impaired patients. However, given the long half-life and nonlinear disposition of the drug, a single-dose study is not adequate to rule out the possibility of altered pharmacokinetics in the elderly, particularly if they have systemic illness or are receiving multiple drugs for concomitant diseases.

Combined fluoxetine plus norfluoxetine plasma concentrations were Tell your doctor right away if you become pregnant while taking this medication. Fluoxetine may cause heart defects or serious lung problems in a newborn if you take the medication during pregnancy. However, you may have a relapse of depression if you stop taking your antidepressant. Do not start or stop taking fluoxetine during pregnancy without your doctor's advice. For the treatment of panic disorder in adults, the initial Prozac dosage is 10 mg per day.

According to the prescribing information, the dosage should be increased to 20 mg daily after one week of treatment. The usual recommended Prozac dosage is 20 mg per day administered in the morning.

During clinical trials, patients were administered dosages ranging from 10 to 60 mg. A dosage of 20 mg was most frequently administered to patients during clinical trials. For all indications of Prozac, it may require four weeks of treatment or longer before patients experience improvements in symptoms. It is essential for patients to continue with treatment exactly as directed to achieve desired therapeutic outcomes. What is the difference between generic and brand Prozac?

In most patients, there is no significant difference between generic and brand Prozac fluoxetine. There is currently a generic equivalent available for Prozac, known as fluoxetine.

Food and Drug Administration FDA requires that generic medications be bioequivalent to the brand-name medication and, therefore, exert the same pharmacologic effects in the body. Generic medications are considered, by the FDA, to be therapeutically identical to the brand-name counterparts in dose, strength, route of administration, safety, efficacy and indication for use. Generic medications will appear differently and may have different inactive ingredients, however, the labeling and directions for use remain the same.

For most medications, generic equivalents are a lower-cost alternative to the more expensive brand-name medication, and the majority of patients observe no changes in therapeutic effect.

However, some patients may experience a change in therapeutic effect and, subsequently, must continue treatment with the brand-name medication. Generic Prozac, fluoxetine, is a selective serotonin reuptake inhibitor SSRI antidepressant which is approved for the treatment of major depressive disorder, obsessive-compulsive disorder OCD , panic disorder and bulimia nervosa. Frequently reported side effects for generic Prozac are similar those observed in patients being treated with the brand-name medication and may include abnormal dreams, abnormal ejaculation, anorexia, anxiety, asthenia, diarrhea, dry mouth, dyspepsia, flu syndrome, impotence, insomnia, decreased libido, nausea, nervousness, pharyngitis, rash, sinusitis, somnolence, sweating, tremor, vasodilatation and yawn.

The warnings and precautions associated with Prozac are also possible with the generic fluoxetine. According to the prescribing information for Prozac, warnings and precautions, possible with treatment, include clinical worsening of depression and suicide risk, serotonin syndrome or neuroleptic malignant syndrome-like reactions, allergic reactions and rash, activation of mania or hypomania, seizures, altered appetite and weight, abnormal bleeding, hyponatremia, possibility of anxiety and insomnia, potential for cognitive and motor impairment and long half-life affecting changes in dosage.

Fluoxetine, generic Prozac, should be administered exactly the same as the brand-name medication. Fluoxetine is typically taken once daily and administered in the morning. Is Prozac for insomnia? Prozac fluoxetine is not indicated for insomnia treatment by the U.

Prozac is approved by the FDA for the treatment of several other medical conditions including depression, obsessive-compulsive disorder, bulimia nervosa and panic disorder. During clinical trials, one of the most commonly observed adverse reactions in patients being treated with Prozac, for any indication, was insomnia.

Patients should be advised to take Prozac exactly as directed by their health care provider. If patients experience unpleasant or bothersome adverse reactions, such as insomnia, they are also advised not to change their dosing regimen or discontinue treatment without consulting with their health care provider.

Prozac fluoxetine is an antidepressant categorized as a selective serotonin reuptake inhibitor SSRI. Prozac is approved, by the U. Food and Drug Administration FDA for the acute and maintenance treatment of major depressive disorder in adult and pediatric patients aged 8 to 18 years, the acute and maintenance treatment of obsessive-compulsive disorder in adult and pediatric patients aged 7 to 17 years, the acute and maintenance treatment of bulimia nervosa in adult patients and the acute treatment of panic disorder, with or without agoraphobia in adult patients.

Prozac is typically administered in the morning and the recommended dosage depends on indication for use. Prozac is available in a capsule formulation in 10 mg, 20 mg and 40 mg strengths. Prozac is also available in a capsule formulation for weekly administration in 90 mg strength. At least five weeks should be allowed after discontinuation of Prozac treatment prior to initiation of treatment with an MAOI because of the long half-life of Prozac.

Prozac is also contraindicated in patients being treated with pimozide and thioridazine because of dangerous drug interactions. Do not use thioridazine within five weeks of discontinuing Prozac treatment. There are several warnings and precautions associated with Prozac treatment that patients should discuss in detail with their health care provider and understand fully prior to initiation of treatment.

According to the prescribing information, the warnings and precautions, possible with Prozac treatment, include clinical worsening of depression and suicide risk, serotonin syndrome or neuroleptic malignant syndrome-like reactions, allergic reactions and rash, activation of mania or hypomania, seizures, altered appetite and weight, abnormal bleeding, hyponatremia, possibility of anxiety and insomnia, potential for cognitive and motor impairment and long half-life affecting changes in dosage.

Prozac is extensively metabolized broken down in the liver by the cytochrome P system and, therefore, has the potential to interact with several medications. It is essential for patients to inform their health care provider of all medications they are currently taking, including prescription medications, over the counter products and dietary or herbal supplements. Treatment with Prozac, for all indications, may require four weeks of treatment or longer before patients experience improvements in symptoms.

What are the benefits and risks of Prozac? There are several benefits and risks of Prozac fluoxetine. For most patients, the benefits outweigh the risks of treatment with Prozac.

However, there are still various risks a patient should be aware of prior to initiation of therapy. The benefits of Prozac extend across many medical conditions. Prozac, a selective serotonin reuptake inhibitor SSRI antidepressant, is a proven effective treatment option and has demonstrated benefits in patients with major depressive disorder, obsessive-compulsive disorder, panic disorder and bulimia.

In addition, Prozac has proven benefits for major depressive disorder and obsessive-compulsive disorder in the pediatric population as well. There are no drug treatments that are not without risk, including Prozac. One of the risks of Prozac treatment is the commonly occurring side effects.

The most commonly reported side effects in patients treated with Prozac include abnormal dreams, abnormal ejaculation, anorexia, anxiety, asthenia, diarrhea, dry mouth, dyspepsia, flu syndrome, impotence, insomnia, decreased libido, nausea, nervousness, pharyngitis, rash, sinusitis, somnolence, sweating, tremor, vasodilatation and yawn. Other risks of Prozac include several warnings and precautions which may occur with treatment.

There is a risk of clinical worsening of depression symptoms and risk of suicide in both the adult and pediatric population. Clinical trials revealed that antidepressant drugs increase the risk of suicidality in children, adolescents and young adults ages 18 to 24 with major depressive disorder and other psychiatric disorders.

According to the prescribing information, all patients being treated with antidepressants, including Prozac, for any indication should be closely monitored and observed for clinical worsening, suicidality and unusual changes in behavior, especially during the first few months of therapy or during times of dosage adjustments.

Patients should be monitored for the following symptoms, anxiety, agitation, panic attacks, insomnia, irritability, hostility, aggressiveness, impulsivity, akathesia, hypomania and mania. These symptoms have been reported in adults and the pediatric population being treated with antidepressants for major depressive disorder, in addition to other psychiatric and nonpsychiatric indications. It is important to advise patients taking Prozac to be aware of the risk for serotonin syndrome or neuroleptic malignant syndrome NMS -like reactions that may occur with SSRIs alone or with the concomitant use of Prozac and other serotonergic medications, such as the triptans medications used to treat migraine headaches , tramadol, serotonin-norepinephrine reuptake inhibitors SNRIs , such as Cymbalta duloxetine , Effexor venlafaxine or Pristiq desvenlafaxine , or other SSRIs.

Symptoms of serotonin syndrome or NMS-like reactions include agitation, confusion, increased heart rate and blood pressure, sweating, headache, diarrhea, loss of muscle coordination, and possibly fever and seizures. Seek immediate medical attention if you experience any of these signs and symptoms.

Prozac may cause an increased risk for bleeding. Patients taking Prozac should discuss the concomitant use of Prozac with non-steroidal anti-inflammatory drugs NSAIDs , including ibuprofen and naproxen, aspirin, warfarin or other medications that affect coagulation with their physician to avoid an increased risk for bleeding.

Before taking any of these medications, it is important to consult with your physician and call your physician immediately if you experience any bleeding or bruising. Hyponatremia low levels of sodium in the blood has been reported as a result of Prozac treatment. It is important to be aware of the signs and symptoms associated with hyponatremia so you can recognize them if they occur. Signs and symptoms include headache, difficulty concentrating, memory impairment, confusion, weakness, unsteadiness, hallucination, passing out, seizure, coma, respiratory arrest and death.

Patients should discuss the benefits and risks of Prozac with their health care provider prior to initiation of treatment.

What is the difference between Cymbalta versus Prozac? There are a number of differences between Cymbalta duloxetine versus Prozac fluoxetine. The main differences between Cymbalta versus Prozac include mechanism of action, the way in which the drug works in the body, and indications for use approved by the U. Cymbalta is a potent inhibitor of both serotonin and norepinephrine reuptake in the central nervous system, while Prozac is a much more potent inhibitor of serotonin reuptake than norepinephrine.

The only common indication between Cymbalta and Prozac is major depressive disorder. Cymbalta belongs to a class of antidepressants known as serotonin norepinephrine reuptake inhibitors SNRI and is indicated for the treatment of major depressive disorder, generalized anxiety disorder, diabetic peripheral neuropathic pain, fibromyalgia and chronic musculoskeletal pain.

Prozac belongs to a different class of antidepressants known as selective serotonin reuptake inhibitors SSRI and is indicated for the treatment of major depressive disorder, obsessive-compulsive disorder, panic disorder and bulimia nervosa.

Another difference between Cymbalta versus Prozac is approved use in the pediatric population. While Prozac is currently approved, by the FDA, for the treatment of major depressive disorder and obsessive-compulsive disorder in the pediatric population, both in children and adolescents, the safety and effectiveness of Cymbalta in the pediatric population has not been established.

Another difference between Cymbalta versus Prozac is there is currently no generic equivalent available for Cymbalta, while Prozac is available in a generic form, known as fluoxetine. Cymbalta and Prozac have similar adverse reactions and warnings and precautions associated with treatment.

However, Cymbalta has been associated with an increased risk of mydriasis prolonged dilation of the pupils of the eye and should be used cautiously in patients with controlled narrow-angle glaucoma.

Patients should be advised to discuss with their health care provider if they have a past medical history of glaucoma prior to initiation of treatment with Cymbalta.

Another difference between Cymbalta versus Prozac, with regard to warnings and precautions, Cymbalta treatment was observed to worsen glycemic control in some patients with diabetes during clinical trials.

How do I take Prozac for depression? To take Prozac fluoxetine for depression, patients should be advised that treatment may require four weeks or longer before the full therapeutic effect of Prozac is observed. It is essential for patients to take Prozac for depression exactly as prescribed by a health care provider and not to adjust the dosing regimen or discontinue treatment with Prozac without the supervision of their doctor.

Prozac is indicated for the treatment of depression in adult and pediatric patients, aged 8 to 18 years. To take Prozac for depression, the initial adult dose is 20 mg per day administered in the morning.

The usual dosage of Prozac for depression ranges from 20 to 80 mg daily. During clinical trials for depression, 20 mg daily was an adequate dosage, in most patients, to achieve a desired therapeutic outcome. Research suggests that dosages higher than 20 mg per day may be administered once daily in the morning or may be administered twice daily when necessary, in the morning and at noon.

To take Prozac for depression, the maximum daily dose is 80 mg. Prozac for weekly administration is also effective for treating depression in adults. To take Prozac for depression in children and adolescents, age 8 and older, the usual dose of Prozac is 10 to 20 mg daily.

For both adult and pediatric patients, an increase in dosage of Prozac may be considered after several weeks of treatment if a less than satisfactory clinical improvement is observed. It is essential that patients are periodically monitored and reassessed to determine if further treatment is required. When taking Prozac for depression, doses are typically administered in the morning unless otherwise instructed.

Patients taking Prozac for depression should be informed regarding the most commonly observed adverse reactions. Prior to beginning treatment with Prozac for depression, it is essential to inform your physician of any other medications you are currently taking, including prescription medications, over the counter products and dietary or herbal supplements to avoid potentially dangerous interactions. How can I lose weight after Prozac? In placebo-controlled clinical trials for major depressive disorder, obsessive-compulsive disorder and bulimia nervosa, altered appetite and weight after beginning Prozac treatment was reported.

Patients did not report weight gain or difficulty losing weight during clinical studies or postmarketing experience with Prozac. Prozac is a potent inhibitor of neuronal serotonin reuptake in the central nervous system and therefore categorized as a selective serotonin reuptake inhibitor SSRI.

Prozac is used for the treatment of bulimia, panic disorder, obsessive-compulsive disorder and major depressive disorder. The tools with which to lose weight after Prozac are the same as those for any other individual attempting to lose weight. In general, irrespective of drug therapy, the safest and most effective method for long-term weight loss is proper diet and exercise.

Eating a healthy, well-balanced diet full of fruits, vegetables and whole grains while limiting sugar, processed foods and alcohol typically people lose weight.

According to the National Heart Lung and Blood Institute NHLBI , a part of the National Institutes of Health NIH , to lose weight it is essential for individuals to make lifestyle changes which focus on reducing calories from food and drink, a healthy eating plan and proper portion control. Furthermore, the NHLBI outlines a healthy eating plan to control portion sizes and include fruits, vegetables, whole grains and fat-free or low-fat dairy products.

A healthy eating plan should also include lean meats, poultry, fish, beans, eggs and nuts and be low in saturated fat, trans fat, cholesterol, sodium and added sugars. To safely and effectively lose weight, in general and after Prozac, individuals need to expend more calories than they take in. Essentially, individuals need to reduce their daily caloric intake from food and beverages and increase calories burned through physical exercise.

An appropriate diet and exercise regimen should initially be under the guidance of a physician. How can I treat bipolar disorder with Prozac? To treat bipolar disorder with Prozac fluoxetine , another medication must be prescribed in combination. Prozac is not currently approved as monotherapy for the treatment of depressive episodes associated with bipolar disorder.

Symbyax is approved by the U. Food and Drug Administration FDA for the acute treatment of depressive episodes associated with bipolar disorder in adults. To treat bipolar disorder with Prozac in combination with olanzapine most physicians will prescribe combination Symbyax.

The efficacy of Symbyax for the acute treatment of depressive episodes associated with bipolar disorder was established in controlled studies. Symbyax should be administered once daily in the evening. While both Prozac and olanzapine individually can be administered without regard to meals, the effect of food on Symbyax specifically has not been evaluated.

According to the prescribing information for Symbyax, dosage changes should be assessed according to efficacy and patient tolerability. The ideal duration of treatment with Symbyax is unknown and patients should be periodically reassessed by a health care provider to determine if continued treatment is necessary. Patients should be advised to avoid alcohol while being treated with Symbyax. To treat bipolar disorder with Symbyax, it is important for patients to take this medication exactly as prescribed even after mood symptoms improve.

Patients should also be advised not to adjust their dosing regimen or discontinue treatment with Symbyax without the supervision of their health care provider. What condition is Prozac used for? Is it used in weight reduction? What are the side effects? Prozac fluoxetine is a medication that is used to treat depression, panic disorder, obsessive compulsive disorder OCD , depression associated with bipolar disorder, as well as other conditions. It is in the class of medications called selective serotonin reuptake inhibitors SSRIs and works by bringing a balance to serotonin in the brain that may be the cause of symptoms.

The prescribing information on Prozac lists the following as the most common side effects associated with the medication: Prozac is not approved by the U. Weight loss appears to be a side effect that occurs in up to 2 percent of patients taking Prozac. It is not entirely clear why this medication causes weight loss, although it is generally a small amount. It may be due to the side effects of loss of appetite, diarrhea and nausea that may contribute to the weight loss.

My doctor recently told me to try to increase my 20 mg of Prozac to 40 mg. I tried it, and it made me exhausted during the day and woke me up in the middle of the night.

Prozac fluoextine belongs to the class of drugs called selective serotonin reuptake inhibitors SSRIs. Common side effects of Prozac include dry mouth, drowsiness, nausea, and weight changes. Other side effects of Prozac include gas, sleep problems, and loss of appetite.

Do not take extra medicine to make up the missed dose. If you miss a dose of Prozac Weekly, take the missed dose as soon as you remember and take the next dose 7 days later. However, if it is almost time for the next regularly scheduled weekly dose, skip the missed dose and take the next one as directed.

What happens if I overdose? Seek emergency medical attention or call the Poison Help line at What should I avoid while taking fluoxetine? Drinking alcohol can increase certain side effects of fluoxetine. Fluoxetine and alcohol in more detail Ask your doctor before taking a nonsteroidal anti-inflammatory drug NSAID for pain, arthritis, fever, or swelling. This includes aspirin, ibuprofen Advil, Motrin , naproxen Aleve , celecoxib Celebrex , diclofenac, indomethacin, meloxicam, and others.

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