Skip to main content
Drug Info

Prozac generic availability, cost, and dosage

Brand-name Prozac and its generic counterpart, fluoxetine, are both prescribed for the treatment of several mental health conditions
Rx tablets: generic Prozac

Key takeaways

  • Prozac, also known as fluoxetine, is used to treat various mental health conditions, and its generic version offers a cost-effective alternative without sacrificing quality or efficacy.

  • Both brand-name Prozac and generic fluoxetine contain the same active ingredients and are expected to have similar therapeutic effects, but may differ in appearance, cost, and available dosage forms.

  • Generic fluoxetine is significantly less expensive than brand-name Prozac, with insurance coverage and discount options potentially reducing costs further for patients.

  • Switching from brand-name Prozac to generic fluoxetine is generally straightforward, but should be done under the guidance of a healthcare provider to ensure the proper dosage and to monitor for side effects or withdrawal symptoms.

Prozac is an antidepressant medication, also known by its generic name, fluoxetine. It is prescribed to treat a variety of mental health conditions, such as depression, obsessive-compulsive disorder (OCD), bulimia nervosa, and panic disorder. 

Prozac belongs to the selective serotonin reuptake inhibitor (SSRI) class and works by regulating the levels of serotonin in the brain. When taken appropriately, Prozac may help improve symptoms involving mood, sleep, appetite, and energy levels. Since its approval by the FDA in 1987, Prozac has become a popular treatment option for millions of people living with mental health disorders in the United States. 

Many people may often be prescribed the Prozac generic, which works the same as the brand-name version. This article will provide an in-depth overview of the differences and similarities between brand-name and generic Prozac, their applications, and other important information.

Is there a generic for Prozac?

Yes, there is a generic version of Prozac available. The first generic, fluoxetine, was introduced to the market in the U.S. in August 2001. Since then, several generic companies have been manufacturing fluoxetine, which has increased the availability and lowered the cost compared to the branded Prozac. 

Patients who need access to effective treatments for their mental health conditions can benefit from the availability of generic fluoxetine without compromising quality. That’s because the generic version must contain the same active ingredients, provide the same benefits, and be as safe and effective as the brand-name version. 

What are the differences between brand name and generic Prozac?

Brand-name Prozac and its generic counterpart, fluoxetine, are both prescribed for the treatment of several mental health conditions, including depression, obsessive-compulsive disorder (OCD), bulimia nervosa, and panic disorder. They can also be used with olanzapine to treat treatment-resistant depression and depressive episodes caused by bipolar disorder. 

Both medications contain the same active ingredient, and their therapeutic effects are expected to be similar. However, the two may have subtle differences, mostly due to their manufacturing processes, appearance, and cost.

Appearance

Eli Lilly manufactures brand-name Prozac, which usually comes in capsule form with specific color combinations and markings for easy identification. On the other hand, generic fluoxetine is manufactured by multiple pharmaceutical companies, so its appearance may vary depending on the manufacturer. Generic and brand-name versions may differ in shape, size, color, and markings.

Dosage forms

While brand-name Prozac is available as an oral capsule, generic fluoxetine is available in various dosage forms, such as oral capsules, tablets, and liquid solutions. The FDA-approved dosages of both brand-name and generic versions are identical, as the medication is typically taken once daily.

Effectiveness and uses

As per FDA regulations, generic medications, including fluoxetine, must demonstrate bioequivalence with their brand-name counterparts to be approved. However, some people might notice different side effects or find that one works better for them because everyone’s body can react differently. In addition, while Prozac is not FDA-approved to treat premenstrual dysphoric disorder (PMDD), generic fluoxetine tablets are approved for PMDD and marketed under a different brand name called Sarafem. 

Prozac (fluoxetine)
Uses
  • Major depressive disorder
  • Obsessive-compulsive disorder
  • Bulimia nervosa
  • Panic disorder
  • Depressive episodes linked to bipolar I disorder (when taken with olanzapine)
  • Treatment-resistant depression (when taken with olanzapine)
Standard dosage
  • 10–60 mg/day, depending on the condition being treated
Common side effects
  • Dry mouth
  • Indigestion
  • Diarrhea
  • Nervousness
  • Trouble sleeping
  • Decreased sex drive
  • Sore throat
  • Rash
  • Drowsiness
  • Sweating
  • Tremor
  • Yawning
  • Weakness
  • Weight changes
  • Abnormal dreams
  • Sexual dysfunction
Contraindications
  • Avoid use with or within 2 weeks of stopping a monoamine oxidase inhibitor (MAOI)
  • Avoid use with pimozide and thioridazine
  • Allergy to fluoxetine
Other considerations
  • Fluoxetine, being an SSRI, may increase the risk of serotonin syndrome, especially when combined with other serotonergic drugs 
  • Fluoxetine can cause sexual side effects, including decreased libido and difficulty reaching orgasm 
  • Fluoxetine may initially worsen symptoms of depression and increase the risk of suicidal ideation, especially in individuals under 25
  • Fluoxetine may cause weight changes, either weight loss or gain
  • Always consult with a healthcare professional for proper dosage and potential drug interactions
  • Long-term use of fluoxetine can lead to discontinuation syndrome if the medication is suddenly stopped
  • Monitor for signs of bleeding when taking fluoxetine, especially when combined with NSAIDs, aspirin, or anticoagulant medications.

 

Both the brand Prozac and the less expensive generic versions have the same active ingredients. However, their appearance and costs can vary. Therefore, you may want to talk to your doctor or healthcare provider to determine the best option for you.

How much is generic Prozac?

There may be a significant difference in cost when comparing the prices between branded and generic Prozac. However, the exact costs can vary depending on the quantity, dosage, and formulation prescribed.

The cost for 30 branded Prozac 20 mg capsules can be almost $700, depending on the pharmacy you visit. However, the generic version, fluoxetine, is notably less expensive. The average cost for 30 capsules of 20 mg fluoxetine capsules is around $50. It’s worth mentioning that these quoted prices are for cash-paying customers.

When it comes to insurance coverage, generic Prozac is usually covered by Medicare and private insurance plans. On the other hand, brand-name Prozac may or may not be covered by insurance; if it is covered, the copay or coinsurance amounts may be high. If you’re uninsured or underinsured, you may have to pay the full retail price of the medication. However, various savings options, such as free coupons or discount cards like the SingleCare savings card, may help you save on retail costs.

Brand vs. generic Prozac prices

Brand-name Prozac Prozac generic (fluoxetine)
Prozac coupons Fluoxetine coupons

These prices are subject to change, and you may find different prices based on your location and pharmacy. You may want to shop around at a different pharmacy and compare prices to find the best deal, especially if insurance coverage is limited or unavailable for your prescription drugs.

What are the off-label uses for Prozac?

While Prozac is FDA-approved for certain mental health conditions, it may also be used off-label for other mental health problems. Off-label prescribing refers to the practice of using medication for a purpose different from what it was initially authorized for by the Food and Drug Administration (FDA). 

Social anxiety disorder

Prozac is sometimes used to treat social anxiety disorder (SAD), a condition characterized by intense fear of social interactions. This fear can be so severe that it interferes with everyday activities and relationships. Studies have shown that fluoxetine alone or used with cognitive behavioral therapy may be more effective in treating SAD than placebo.

Post-traumatic stress disorder

In some cases, Prozac may be used off-label to help treat post-traumatic stress disorder (PTSD). PTSD can develop after a person experiences a traumatic event, leading to symptoms such as intrusive memories, nightmares, and severe anxiety. According to studies, a daily dose of fluoxetine may help to reduce PTSD symptoms.

Other off-label uses

Prozac or fluoxetine may be used for other off-label uses not listed here, including: 

  • Generalized anxiety disorder
  • Anorexia nervosa
  • Obesity
  • Borderline personality disorder
  • Autistic disorder
  • Separation anxiety disorder
  • Fibromyalgia
  • Premature ejaculation
  • Hot flashes
  • Migraine headaches

The evidence behind the use of fluoxetine for these off-label uses may be limited. A healthcare provider may use their expertise and judgment to prescribe Prozac for off-label uses, depending on the benefits and risks.

How to switch from Prozac to fluoxetine

In many cases, a healthcare provider will prescribe the generic form of Prozac. However, if you’re taking brand-name Prozac, you may be switched to the generic form with guidance from a healthcare provider. If you’re prescribed Prozac, a pharmacist may dispense the generic form if the brand-name version isn’t marked as medically necessary on the prescription. Prozac and fluoxetine are essentially the same medication, as both brand-name and generic Prozac contain the same active ingredients. 

Transition process

  • Before switching from brand-name Prozac to generic fluoxetine, consult your healthcare provider. They can ensure you’re taking the appropriate dose based on your health condition, symptoms, and overall needs.
  • Tapering off Prozac is generally not necessary when transitioning to fluoxetine, as both medications have the same effects on serotonin levels in the brain.
  • Take the first dose of fluoxetine at the time you would otherwise take a dose of Prozac to maintain your treatment schedule. This timing ensures no disruption to your medication regimen.
  • Both Prozac and fluoxetine have similar side effects. If you experience any side effects that persist or worsen, consult your healthcare provider during the transition.
  • Your healthcare provider can help advise you on any side effects and ensure that the new medication is working correctly. Always stay in touch with your doctor for any medical concerns during the transition.

Practical tips for switching

  • Pharmacists have the authority to dispense generic fluoxetine even if your prescription is for brand-name Prozac. This substitution is permitted, as the drugs are seen as bioequivalent by the FDA.
  • There might be situations where your healthcare provider advises continuing with the brand-name Prozac instead of switching to generic fluoxetine. Instances like these could be due to potential adverse reactions to the generic drug or other health concerns. Always heed your doctor’s guidance and consult them before altering your medication routine. 
  • You may want to keep a record of your symptoms and any severe side effects when transitioning medications. Your healthcare provider can monitor how you’re responding to the new version and make changes if needed.
  • Be aware of potential withdrawal symptoms if your daily doses are interrupted or if there’s a shortage of the medication. Always consult your healthcare provider if you notice any significant withdrawal symptoms when stopping the medication.

Switching from brand-name Prozac to generic fluoxetine can be a seamless process when guided by your healthcare provider. However, it may be recommended to monitor your medical condition, discuss your concerns with your healthcare provider, and stay up-to-date on your treatment plan.