Seroquel vs Latuda

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For patients with bipolar disorder or schizophrenia, certain drugs that manipulate the concentrations of chemicals in the brain associated with mood and perception can be crucial for managing symptoms. Seroquel and Latuda are two such drugs often prescribed for these conditions. They each impact different neurotransmitter systems in the brain but both have beneficial effects on patients' moods and perceptions. Seroquel, also known as quetiapine, is classified as an atypical antipsychotic affecting several neurotransmitters including serotonin and dopamine. On the other hand, Latuda (lurasidone) is a newer type of atypical antipsychotic primarily affecting levels of serotonin and to some extent dopamine.

What is Seroquel?

Quetiapine (the generic name for Seroquel) is an atypical antipsychotic that was first approved by the FDA in 1997. It works by altering the activity of certain natural substances in the brain, primarily serotonin and dopamine. Seroquel is prescribed for a variety of mental health conditions such as schizophrenia, bipolar disorder, and adjunctive treatment of major depressive disorders. On the other hand, Lurasidone (Latuda) is another atypical antipsychotic drug that got approval from FDA later on in 2010. Latuda also affects neurotransmitters like serotonin and dopamine but it's specifically indicated for schizophrenia and depression associated with Bipolar I disorder. While both drugs have similar side effects including drowsiness, weight gain and restless syndrome among others, they each possess unique benefits based on individual patient needs with regards to their specific diagnosis or tolerability profile.

What conditions is Seroquel approved to treat?

Seroquel is approved for the treatment of several mental health disorders:

  • Schizophrenia, a severe mental disorder that affects how a person thinks, feels, and behaves
  • Bipolar disorder, a condition marked by periods of extreme mood swings ranging from mania to depression
  • Major depressive disorder as an add-on treatment when other drugs alone do not adequately relieve symptoms.

How does Seroquel help with these illnesses?

Seroquel, also known as quetiapine, helps to manage conditions like schizophrenia and bipolar disorder by impacting the balance of certain neurotransmitters in the brain. It is an atypical antipsychotic that blocks receptors for dopamine and serotonin, two key chemical messengers in the brain. This action reduces psychotic symptoms including hallucinations, delusions, and disordered thinking.

On the other hand, Latuda or lurasidone acts similarly but differs slightly regarding its receptor profile. Like Seroquel it influences both dopamine and serotonin systems but is more selective in its action on their specific subtypes of receptors.

These two chemicals play important roles in a person's mood stability, cognition among other things. Therefore by influencing these chemicals' actions through blocking their receptors selectively, medications like Seroquel or Latuda can limit negative effects associated with psychiatric disorders such as schizophrenia or bipolar disorder helping patients manage their condition effectively.

What is Latuda?

Latuda is a brand name for lurasidone, which is an atypical antipsychotic that functions by blocking dopamine D2 receptors and serotonin 5-HT2A receptors in the brain. Its action on these two neurotransmitters helps to regulate mood and behavior. Approved by the FDA in 2010, Latuda does not have significant activity against muscarinic or histaminergic receptors, meaning it doesn't cause many of the side effects associated with older antipsychotics, such as sedation or weight gain. In fact, its effect on serotonin makes it less likely to induce sexual dysfunction — a common side effect seen with other atypical antipsychotics like Seroquel (quetiapine). The balance between dopamine and serotonin can be beneficial in treating schizophrenia and bipolar depression, especially for patients who do not respond well to more "typical" antipsychotic drugs such as Seroquel.

What conditions is Latuda approved to treat?

Latuda is an atypical antipsychotic medication that has been approved by the FDA for treating:

  • Schizophrenia in adults and adolescents aged 13 to 17 years
  • Bipolar depression, either alone or with lithium or valproate, in adults and children between ages 10 to17.

How does Latuda help with these illnesses?

Dopamine is a neurotransmitter that plays several important roles in the brain and body. It influences mood, motivation, memory and attention among other things. Low levels of dopamine have been linked to mental health disorders like depression or schizophrenia. Latuda works by regulating the levels of dopamine available in the brain which can help alleviate some symptoms associated with these disorders. Its action on serotonin may also play a role in its effectiveness as an antipsychotic medication. Unlike Seroquel, which affects multiple neurotransmitters including norepinephrine and histamine, Latuda primarily targets dopamine and serotonin receptors making it potentially less likely to cause certain side effects such as weight gain or drowsiness. Therefore, Latuda may be preferred for patients who do not respond well to typical atypical antipsychotics (such as Seroquel), or it could be combined with them for more comprehensive treatment.

How effective are both Seroquel and Latuda?

Both quetiapine (Seroquel) and lurasidone (Latuda) have proven efficacy in treating patients with schizophrenia, bipolar disorder, and major depressive disorder. Seroquel was initially approved by the FDA in 1997, while Latuda received its approval later in 2010. They both act on dopamine and serotonin receptors but do so differently which can lead to them being prescribed under different circumstances.

The effectiveness of Seroquel and Latuda has been extensively studied over the years. A significant study conducted in 2006 compared the two drugs directly showing similar efficacy for managing symptoms of psychosis as well as comparable safety profiles. Throughout this trial, there were no discernible differences between patients receiving Seroquel or those receiving Latuda when measuring their abilities to manage psychotic symptoms.

A review from 2013 highlighted that Seroquel is effective at alleviating symptoms of psychosis starting from the first week of treatment; it offers a favorable side effect profile relative to many other antipsychotics and is generally well-tolerated across a range of patient populations including elderly ones. This research also revealed that Seroquel had become one of the most widely prescribed antipsychotic medications around the globe due to its established history and effectiveness.

Conversely, a meta-analysis performed in 2020 indicated that Latuda seems more effective than placebo in treating psychosis while demonstrating similar efficacy to other common antipsychotics. However, since data confirming its stand-alone efficiency is less robust compared to that available for Seroquel, it's often considered after trialing first-line treatments like olanzapine or risperidone unless patients present particular needs such as weight gain avoidance where lurasidone shows an advantage due to its lesser propensity for weight gain.

abstract image of a researcher studying a bottle of drug.

At what dose is Seroquel typically prescribed?

Oral dosages of Seroquel for the treatment of schizophrenia range from 150-750 mg/day, typically beginning with 25 mg administered twice a day and then gradually increased by your doctor. For bipolar disorder, doses generally range between 400 to 800 mg/day. On the other hand, Latuda is prescribed at lower doses ranging from 20 to 120mg per day for treating both schizophrenia and bipolar depression in adults. Adolescents aged between 13-17 years may start on a dosage as low as 10 mg/day depending on their response towards the medication. In any case, it's important not to exceed the maximum recommended daily dosage of each drug: that's 800mg for Seroquel and 120mg for Latuda.

At what dose is Latuda typically prescribed?

Latuda treatment usually begins with a dosage of 20-40 mg/day. Depending on the individual's response to the medication, the dose can then be increased up to a maximum of 160mg/day. This is typically divided into one or two doses per day, taken with food for optimal absorption. Some patients may start seeing improvements in their symptoms within the first week; however, it could take several weeks before full therapeutic effects are observed. If there is no significant improvement or if side effects become too burdensome after increasing the dose gradually, further adjustments might be considered under your doctor's guidance.

What are the most common side effects for Seroquel?

Common side effects of Seroquel may include:

  • Drowsiness, sedation
  • Dry mouth
  • Constipation
  • Increased appetite and subsequent weight gain
  • Upset stomach, nausea, vomiting
  • A feeling of restlessness or needing to move around (akathisia)
  • Disturbed sleep pattern, insomnia

On the other hand, common side effects experienced with Latuda might be:

  • Sleepiness/drowsiness
  • Restlessness or needing to move around (akathisia)
  • Nausea
  • Movement abnormalities such as tremors, slow movement or muscle stiffness (Parkinsonism) -Dizziness upon standing up due to blood pressure changes -Decreased sexual drive

Both these medications can have serious side effects related to involuntary movement disorders. If you experience any severe symptoms such as significant behavior change or suicidal thoughts while taking these drugs, seek immediate medical assistance.

abstract image of a patient experiencing side effect

Are there any potential serious side effects for Seroquel?

While both Seroquel and Latuda are antipsychotic medications used to treat conditions such as schizophrenia and bipolar disorder, they do have some different potential side effects. With Seroquel:

  • You may experience signs of high blood sugar (hyperglycemia) which include increased thirst, frequent urination, extreme hunger, or unexplained weight loss.
  • In rare instances, a severe allergic reaction could occur: symptoms can include hives; difficulty breathing; swelling in your face or throat.
  • Vision changes might happen - blurred vision or eye pain/swelling/redness.
  • Rapid heartbeat, fluttering in your chest could be experienced along with shortness of breath and sudden dizziness (feeling like you might pass out).
  • Low sodium levels may occur in the body - this can cause headache, confusion, slurred speech, severe weakness,vomiting,and loss of coordination. -Severe reactions affecting the nervous system are also possible including rigid muscles,muscle tremors,sweating,and fast/irregular heartbeats. A feeling that you might faint is another sign to watch for. -Symptoms of Neuroleptic Malignant Syndrome (NMS), a potentially fatal condition associated with antipsychotic drugs: high fever,sweating,muscle stiffness,twitching,racing pulse rate,incoordination.Nausea,vomiting,and diarrhea may also be concomitant symptoms.

If any of these side effects are experienced while taking Seroquel,it's crucial to seek immediate medical attention.

What are the most common side effects for Latuda?

Latuda, like any medication, is not without side effects. You may experience the following symptoms while taking this drug:

  • Dry mouth and throat discomfort
  • Nasal congestion
  • Visual disturbances or blurred vision
  • Nausea, vomiting, abdominal pain, loss of appetite and constipation
  • Sleep disorders including insomnia
  • Tremors or shaking hands, perspiration and feelings of anxiety or nervousness
  • Increased heart rate
  • Mental confusion or feeling agitated and hostile towards others
  • Skin rash
  • Unintended weight loss -Increased frequency in urination -Potential headaches and dizziness
    -Muscle ache or joint pain

Remember that these side effects are potential risks; not everyone experiences them. It's also crucial to keep in mind that this list is not exhaustive - other unlisted symptoms could occur.

Are there any potential serious side effects for Latuda?

Latuda, like any medication, can cause side effects. Some of the more serious ones include:

  • Signs of an allergic reaction such as hives; difficulty breathing; swelling in your face or throat.
  • Increased suicidal thoughts and behaviors, particularly among people younger than 24.
  • A motor disorder that may involve muscle stiffness, tremors or shuffling walk (extrapyramidal symptoms).
  • Unusual changes in mood or behavior, including agitation or aggression.
  • Vision problems such as blurred vision and eye pain
  • Irregular heartbeats which might be indicative of a condition called Torsades de Pointes.

If you notice any of these potential side effects while taking Latuda, it is crucial to contact your healthcare provider immediately.

Contraindications for Seroquel and Latuda?

Both Seroquel and Latuda, like most antipsychotic medications, may increase symptoms of depression in some individuals. If you notice your depression worsening or an increase in suicidal ideation, thoughts or behavior while taking these drugs, it is crucial to seek immediate medical attention.

Neither Seroquel nor Latuda should be taken if you are taking or have been taking certain classes of drugs such as strong inhibitors of CYP3A4 (like HIV protease inhibitors), inducers of CYP3A4 (like rifampin) and certain other psychiatric medications without consulting with your physician first. These medicines will require a period to clear from the system before starting on either Latuda or Seroquel to prevent dangerous interactions. Always inform your doctor about all medications that you are currently using.

How much do Seroquel and Latuda cost?

For the brand name versions of these drugs:

  • The price of 60 tablets of Seroquel (100 mg) averages around $900, which works out to $15–30/day, depending on your dose.
  • The price of 30 capsules of Latuda (20 mg) is approximately $1,300, working out to a hefty sum of about $43/day.

Thus, if you are in the higher dosage range for Seroquel (i.e., 400 mg/day or higher), then brand-name Latuda might be less expensive on a per-dose basis. However, remember that cost should not be a primary consideration when deciding which drug is best suited for your needs.

As for generic versions:

  • Quetiapine fumarate — the generic version of Seroquel — costs significantly less with prices averaging between $0.50 and $2 per day based on daily dosages from 100mg up to 400mg.
  • Unfortunately there is no generic version available yet for Lurasidone Hydrochloride - the active ingredient in Latuda - so patients will need to pay full-price unless covered by insurance.

Remember that all medications have potential side effects and interactions and it's important to discuss these factors along with cost when choosing treatment options with your healthcare provider.

Popularity of Seroquel and Latuda

Quetiapine, commercially known as Seroquel, was prescribed to roughly 2.8 million people in the United States in 2020. Quetiapine accounted for just over 9% of typical antipsychotic prescriptions and has been a popular choice among healthcare professionals since it received FDA approval in 1997.

On the other hand, Lurasidone or Latuda had about 1.3 million prescriptions filled within the same period. Despite being relatively newer on the market (FDA approved in 2010), it accounts for around 5% of atypical antipsychotic prescriptions. Both drugs are part of a class called "atypical" antipsychotics that have different indications and side effects compared to older "typical" antipsychotics. However, recent trends show an increase in preference for Latuda due to its lower metabolic risk profile when compared with Seroquel.


Both Seroquel (quetiapine) and Latuda (lurasidone) have an established history of usage in patients with bipolar disorder or schizophrenia, backed by significant clinical research indicating that they are more effective than placebo treatments. There may be instances where these drugs could be combined, but this would require careful evaluation by a physician as there may also be contraindications between them. Owing to their distinct mechanisms of action - with Seroquel primarily affecting dopamine, serotonin, and adrenergic receptors while Latuda primarily targets dopamine D2 and serotonin 5-HT2A receptors - they tend to be prescribed under different circumstances.

Seroquel is often used as a first-line treatment option due to its broad efficacy across multiple symptoms including mania, depression, and psychosis associated with bipolar disorder or schizophrenia. On the other hand, Latuda is usually considered for patients who did not respond adequately to first line antipsychotics or preferentially need to avoid common metabolic side-effects like weight gain and diabetes risk associated with some antipsychotic medications such as Seroquel.

Both drugs are available in generic form which can lead to substantial cost savings especially for those paying out-of-pocket. An adjustment period might also apply for both Seroquel and Latuda where effects aren't immediately noticeable.

The side effect profiles are similar between the two drugs; generally well-tolerated but with notable differences: Seroquel has been linked more strongly with weight gain whereas Latuda tends towards minimal impact on weight but slightly higher risk of movement-related side effects. For both medications, patients must closely monitor their moods particularly when starting treatment- if noticing worsening symptoms or increased thoughts about self-harm they should seek immediate medical attention.