Prozac is a prescription medicine used to treat depression, obsessive compulsive disorder (OCD), bulimia, and panic disorder. Prozac belongs to a group of drugs called selective serotonin reuptake inhibitor (SSRI). It works by changing the levels of certain chemicals in the brain that affect your mood.

Prozac is available in capsule form and in solution form. Prozac is usually taken once or twice a day, with or without food.
 
Common side effects of Prozac include unusual dreams, sexual problems, and loss of appetite. Prozac can also cause dizziness or drowsiness. Do not drive or operate heavy machinery until you know how Prozac affects you.

WARNING–SUICIDALITY AND ANTIDEPRESSANT DRUGS

Antidepressants increased the risk compared to placebo of suicidal thinking and behavior (suicidality) in children, adolescents, and young adults in short-term studies of Major Depressive Disorder (MDD) and other psychiatric disorders. Anyone considering the use of fProzac or any other antidepressant in a child, adolescent, or young adult must balance this risk with the clinical need. Short-term studies did not show an increase in the risk of suicidality with antidepressants compared to placebo in adults beyond age 24; there was a reduction in risk with antidepressants compared to placebo in adults aged 65 and older. Depression and certain other psychiatric disorders are themselves associated with increases in the risk of suicide. Patients of all ages who are started on antidepressant therapy should be monitored appropriately and observed closely for clinical worsening, suicidality, or unusual changes in behavior. Families and caregivers should be advised of the need for close observation and communication with the prescriber. Prozac is approved for use in pediatric patients with MDD and Obsessive Compulsive Disorder (OCD). 

When using fluoxetine and olanzapine in combination, also refer to Boxed Warning section of the package insert for olanzapine and fluoxetine hydrochloride capsules.

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Overview Video: 
Prozac
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Prozac treats depression. It may take several weeks before you feel the full benefit of this medication.
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Uses : 

Prozac is a prescription medicine used to treat the following conditions:

  • Depression (known medically as major depressive disorder (MDD) or clinical depression)
  • Obsessive compulsive disorder (OCD) 
  • Bulimia nervosa 
  • Panic disorder 
  • Depression associated with bipolar disorder, taken with olanzapine (Symbyax)
  • Treatment-resistant depression (depression that has not gotten better with at least 2 other treatments), taken with olanzapine (Symbyax)

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.

Side Effects: 

Prozac may cause serious side effects. See "Drug Precautions" section.

Common possible side effects in people who take Prozac include: 

  • unusual dreams 
  • sexual problems 
  • loss of appetite, diarrhea, indigestion, nausea or vomiting, weakness, or dry mouth 
  • flu symptoms 
  • feeling tired or fatigued 
  • change in sleep habits
  • yawning 
  • sinus infection or sore throat 
  • tremor or shaking 
  • sweating 
  • feeling anxious or nervous 
  • hot flashes 
  • rash 
 
Other side effects in children and adolescents include: 
  • increased thirst 
  • abnormal increase in muscle movement or agitation 
  • nose bleed 
  • urinating more often 
  • heavy menstrual periods 
  • possible slowed growth rate and weight change. Your child’s height and weight should be monitored during treatment with Prozac
 
Tell your healthcare provider if you have any side effect that bothers you or that does not go away. These are not all the possible side effects of Prozac. For more information, ask your healthcare provider or pharmacist.
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Drug Interactions: 

Tell your doctor about all the medicines you take including prescription and non-prescription medicines, vitamins, and herbal supplements. Especially tell your doctor if you take:

  • Triptans used to treat migraine headache 
  • Medicines used to treat mood, anxiety, psychotic or thought disorders, including tricyclics, lithium, SSRIs, SNRIs, MAOI’s (including linezolid, an antibiotic), or antipsychotics 
  • Tramadol 
  • Over-the-counter supplements such as tryptophan or St. John’s Wort 

If you take Prozac, you should not take any other medicines that contain fluoxetine including: 

  • Symbyax 
  • Sarafem 
  • Prozac Weekly

This is not a complete list of Prozac drug interactions. Ask your doctor or pharmacist for more information

Prozac and some medicines may interact with each other, may not work as well, or may cause serious side effects. Your healthcare provider or pharmacist can tell you if it is safe to take Prozac with your other medicines. Do not start or stop any medicine while taking Prozac without talking to your healthcare provider first.

Drug Precautions: 

Prozac and other antidepressant medicines may cause serious side effects, including:

1. Suicidal thoughts or actions:

  • Prozac and other antidepressant medicines may increase suicidal thoughts or actions in some children, teenagers, or young adults within the first few months of treatment or when the dose is changed.
  • Depression or other serious mental illnesses are the most important causes of suicidal thoughts or actions.
  • Watch for these changes and call your healthcare provider right away if you notice:
    • New or sudden changes in mood, behavior, actions, thoughts, or feelings, especially if severe.
    • Pay particular attention to such changes when Prozac is started or when the dose is changed.

Keep all follow-up visits with your healthcare provider and call between visits if you are worried about symptoms.

Call your healthcare provider right away if you have any of the following symptoms, or call 911 if an emergency, especially if they are new, worse, or worry you:

  • attempts to commit suicide
  • acting on dangerous impulses
  • acting aggressive or violent
  • thoughts about suicide or dying
  • new or worse depression
  • new or worse anxiety or panic attacks
  • feeling agitated, restless, angry or irritable
  • trouble sleeping
  • an increase in activity or talking more than what is normal for you
  • other unusual changes in behavior or mood

Call your healthcare provider right away if you have any of the following symptoms, or call 911 if an emergency. Prozac may be associated with these serious side effects:

2. Serotonin Syndrome or Neuroleptic Malignant Syndrome-like reactions. This condition can be life-threatening and may include:

  • agitation, hallucinations, coma or other changes in mental status
  • coordination problems or muscle twitching (overactive reflexes)
  • racing heartbeat
  • high or low blood pressure
  • sweating or fever
  • nausea, vomiting, or diarrhea
  • muscle rigidity

3. Severe allergic reactions:

  • trouble breathing
  • swelling of the face, tongue, eyes or mouth
  • rash, itchy welts (hives) or blisters, alone or with fever or joint pain

4. Abnormal bleeding: Prozac and other antidepressant medicines may increase your risk of bleeding or bruising, especially if you take the blood thinner warfarin (Coumadin, Jantoven), a non-steroidal anti-inflammatory drug (NSAIDs, like ibuprofen or naproxen), or aspirin.

5. Seizures or convulsions

6. Manic episodes:

  • greatly increased energy
  • severe trouble sleeping
  • racing thoughts
  • reckless behavior
  • unusually grand ideas
  • excessive happiness or irritability
  • talking more or faster than usual

7. Changes in appetite or weight. Children and adolescents should have height and weight monitored during treatment.

8. Low salt (sodium) levels in the blood. Elderly people may be at greater risk for this. Symptoms may include:

  • headache
  • weakness or feeling unsteady
  • confusion, problems concentrating or thinking or memory problems

Do not stop Prozac without first talking to your healthcare provider. Stopping Prozac too quickly may cause serious symptoms including:

  • anxiety, irritability, high or low mood, feeling restless or changes in sleep habits
  • headache, sweating, nausea, dizziness
  • electric shock-like sensations, shaking, confusion

Do not take Prozac if you: 

  • are allergic to any ingredient of Prozac. Ask your pharmacist for a complete list of ingredients.
  • take a Monoamine Oxidase Inhibitor (MAOI). 
  • take Mellaril (thioridazine). Do not take Mellaril within 5 weeks of stopping fluoxetine because this can cause serious heart rhythm problems or sudden death. 
  • take the antipsychotic medicine pimozide (Orap) because this can cause serious heart problems.

Other precautions:

  • Do not take an MAOI within 5 weeks of stopping Prozac. 
  • Do not start Prozac if you stopped taking an MAOI in the last 2 weeks. People who take Prozac close in time to an MAOI may have serious or even life threatening side effects. Get medical help right away if you have any of these symptoms:
    • high fever 
    • uncontrolled muscle spasms 
    • stiff muscles 
    • rapid changes in heart rate or blood pressure
    • confusion 
    • loss of consciousness (pass out) 
Prozac can cause sleepiness or may affect your ability to make decisions, think clearly, or react quickly. You should not drive, operate heavy machinery, or do other dangerous activities until you know how Prozac affects you. Do not drink alcohol while using Prozac.

 

Food Interactions: 

Medicines can interact with certain foods. In some cases, this may be harmful and your doctor may advise you to avoid certain foods. In the case of Prozac there are no specific foods that you must exclude from your diet when receiving Prozac.

Inform MD: 

Before starting Prozac, tell your healthcare provider if you: 

  • Are taking certain drugs or treatments such as:
    • Triptans used to treat migraine headache 
    • Medicines used to treat mood, anxiety, psychotic or thought disorders, including tricyclics, lithium, SSRIs, SNRIs, MAOI’s (including linezolid, an antibiotic), or antipsychotics 
    • Tramadol 
    • Over-the-counter supplements such as tryptophan or St. John’s Wort 
    • Electroconvulsive therapy (ECT) 
  • have liver problems 
  • have kidney problems 
  • have heart problems 
  • have or had seizures or convulsions 
  • have bipolar disorder or mania 
  • have low sodium levels in your blood 
  • have a history of a stroke 
  • have high blood pressure 
  • have or had bleeding problems 
  • are pregnant or breastfeeding
Tell your healthcare provider about all the medicines that you take, including prescription and non-prescription medicines, vitamins, and herbal supplements. Prozac and some medicines may interact with each other, may not work as well, or may cause serious side effects. 
 
If you take Prozac, you should not take any other medicines that contain fluoxetine including: 
  • Symbyax 
  • Sarafem 
  • Prozac Weekly

 

Inform MD Image: 
Pregnant: 

Tell your doctor if you are pregnant or plan to become pregnant.

The FDA categorizes medications based on safety for use during pregnancy. Five categories - A, B, C, D, and X, are used to classify the possible risks to an unborn baby when a medication is taken during pregnancy.

Prozac falls into category C. In animal studies, pregnant animals were given this medication and had some babies born with problems. No well-controlled studies have been done in humans, though. Therefore, this medication may be used if the potential benefits to the mother outweigh the potential risks to the unborn child.

Lactation: 

Tell your doctor if you are breastfeeding or plan to breastfeed. 

Prozac has been detected in human breast milk. Because of the possibility for adverse reactions in nursing infants from Prozac, a choice should be made whether to stop nursing or to stop use of this medication. The importance of the drug to the mother should be considered.

Drug Usage: 
  • Take Prozac exactly as prescribed. Your doctor may need to change (adjust) the dose of Prozac until it is right for you.
  • If you miss a dose of Prozac, take the missed dose as soon as you remember. If it is almost time for the next dose, skip the missed dose and take your next dose at the regular time. Do not take two doses of Prozac at the same time.
  • To prevent serious side effects, do not stop taking Prozac suddenly. If you need to stop taking Prozac, your doctor can tell you how to safely stop taking it.
  • Prozac can be taken with or without food.
  • Prozac is available in capsule form and in solution form. Prozac is usually taken once or twice a day, with or without food.
  • If you do not think you are getting better or have any concerns about your condition while taking Prozac, call your doctor.
Drug Dosage: 

Take Prozac exactly as prescribed by your doctor. Follow the directions on your prescription label carefully.

The dosage of Prozac must be individualized based on your age, the condition being treated, other medications you are taking, and other medical conditions you may have.

For adults, Prozac doses range from 20 mg to 80 mg, taken once a day or taken as divided doses.

Your doctor may start you on a low dose of Prozac and gradually increase your dose.

  • It may take more than 4 weeks before you feel the full benefit of Prozac.
  • Do not stop taking Prozac until you talk to your doctor.
  • If you need to stop taking Prozac, your doctor will probably decrease your dose gradually.

 

Overdose: 

If you take too much Prozac call your local Poison Control Center or seek emergency medical attention right away.

 

Other Requirements: 
  • Store Prozac at room temperature between 59°F and 86°F (15°C to 30°C). 
  • Keep Prozac away from light. 
  • Keep Prozac bottle closed tightly. 
  • Keep Prozac and all medicines out of the reach of children.
Quick Facts: 
<p>Unlike other selective serotonin reuptake inhibitors, fluoxetine can be stopped abruptly without increasing the risk of serotonin withdrawal syndrome. Other medications in this class must be tapered when stopped after a long period of use.&nbsp;</p><p>Fluoxetine and medications in a class of drugs called MAO inhibitors can interact in a dangerous and potentially life-threatening way when taken together. Do not start fluoxetine within 14 days of stopping a MAO inhibitor. Do not start a MAO inhibitor within 5 weeks of stopping fluoxetine.</p><p><span style="font-family: arial, sans, sans-serif; line-height: normal; white-space: pre-wrap;">Fluoxetine and other antidepressants can cause uncomfortable thoughts including thoughts of suicide in younger patients. These side effects are generally temporary and go away with time. Make sure to follow up with your physician closely during the beginning of your treatment.</span></p><p><span style="background-color: rgb(248, 244, 235); font-family: arial, sans, sans-serif; line-height: normal; white-space: pre-wrap;">Fluoxetine and other selective serotonin uptake inhibitors can take up to 4 weeks to take full effect but usually begin to take effect around 1 to 2 weeks after starting therapy. </span></p><p>&nbsp;</p>
Generic RX Name: 
fluoxetine
Medications: