What Does Prozac Feel Like When It Starts Working?


Prozac was introduced in the United States in 1988 and swiftly gained widespread use as an antidepressant. Despite the introduction of newer medications since its debut, what does prozac feel like when it starts working to maintain its popularity.

Prozac belongs to a class of drugs known as selective serotonin reuptake inhibitors (SSRIs), which enhance serotonin levels in the body. Serotonin primarily functions as a mood stabiliser, and the elevation of serotonin levels often leads to an alleviation of depressive and anxiety symptoms. Upon reaching its full effects, Prozac users typically experience improved sleep, increased appetite, and enhanced mood.

What Is Prozac?

Prozac, also known by its generic name fluoxetine, is a prescription medication prescribed for various conditions including depression, certain eating disorders, obsessive-compulsive disorder, and panic attacks.

In addition, Prozac is used to alleviate symptoms associated with premenstrual dysphoric disorder, such as irritability, mood swings, breast tenderness, and bloating.

While its primary applications revolve around the aforementioned conditions, Prozac may also be used in certain cases to address attention-deficit disorder (ADHD), alcoholism, sleep disorders, borderline personality disorder, mental illness, headaches, Tourette’s syndrome, posttraumatic stress disorder (PTSD), sexual problems, obesity, and phobias.

How Does Prozac Work?

Prozac is classified as a selective serotonin reuptake inhibitor (SSRI), which raises serotonin levels in the brain. Serotonin serves as a neurotransmitter, facilitating communication between nerve cells.

Serotonin plays a crucial role in various bodily functions, including:

  • Regulating anxiety
  • Alleviating depression
  • Triggering nausea
  • Facilitating wound healing
  • Maintaining bone health

Serotonin is predominantly recognized for its contribution to mood stabilisation. When serotonin levels are balanced, individuals tend to experience increased calmness, happiness, focus, emotional stability, and reduced anxiety.

However, when serotonin levels in the brain are depleted, it can lead to conditions such as depression, sleep disturbances, and anxiety. By elevating serotonin levels, Prozac assists in addressing these conditions.

What Happens When You Start Prozac?

Individuals who begin taking Prozac and experience positive effects will observe a reduction in their anxiety symptoms, leading to improvements in various aspects of their lives.

Some of the advantages reported by Prozac users include:

Enhanced sleep quality and increased appetite

Feeling more relaxed and experiencing reduced anxiety

Heightened energy levels

Greater interest in life

Improved focus and concentration

However, it is common for individuals to encounter certain side effects before noticing the benefits. These side effects may include:

Blurred vision






Dry mouth

Sexual problems





Loss of appetite

Many individuals find that these side effects diminish over time or become less bothersome.

How does it feel when the Prozac starts to work?

During the initial one to two weeks of Prozac treatment, it is likely that improvements in energy levels, appetite, and sleep will become apparent. Simultaneously, the side effects experienced at the beginning of Prozac usage will gradually diminish or disappear completely.

Over the following months, as Prozac consistently exerts its effects, other symptoms associated with depression or anxiety may also show signs of improvement. For instance, individuals may observe an uplifted mood or renewed interest in their daily activities.

As the effects of Prozac persist, individuals may begin to feel a restoration of their true selves.

How Long Does It Take Work?

The initial effects of Prozac are typically noticeable within 1-2 weeks after initiation. However, it often takes 6 to 8 weeks of consistent use to experience the complete effects of Prozac. It is crucial to continue taking Prozac as prescribed, even if there is a perception that it is not working, as the full benefits may take time to manifest.


In conclusion, experiencing what does prozac feel like when it starts working as it begins to take effect varies from person to person. Some individuals may notice a gradual improvement in their mood, reduced anxiety, and a greater sense of emotional balance. It’s important to remember that these sensations can manifest differently for each individual, and patience is key as the medication takes its course. Always consult your healthcare provider to understand and monitor your response to Prozac or any other medication, ensuring the best possible outcome for your mental health journey.


Q1: How long does it take for Prozac to work? 

Ans: 6-8 weeks for full effects.

Q2: What are the common side effects of Prozac? 

Ans: blurred vision, dizziness, nausea, etc.

Q3: Can Prozac be used to treat conditions other than depression? 

Ans: Yes, it has various off-label uses.

Q4: How long

  •  weight gain

should Prozac be taken for? 

Ans: Duration of treatment depends on individual circumstances.

Q5: Can Prozac cause weight gain or loss? 

Ans: Both weight gain and weight loss are possible side effects.