LONG-ACTING INJECTABLES
Long-Acting Injectable Treatments at Parth Hospital

Long-Acting Injectable Antipsychotics: Ensuring Consistent Mental Health Care​

Long-Acting Injectable Antipsychotics (LAIs) deliver sustained medication through periodic injections, ensuring stable symptom control. Ideal for adherence challenges, LAIs reduce relapses, improve outcomes, and lower hospitalization risk.

What Are Long Acting Injectables?

Long-Acting Injectable Antipsychotics (LAI’s) are a special kind of antipsychotic medicine. They’re designed to give you a steady dose of medicine for a long time, without you having to take it every day. Instead of taking pills, you’ll get an injection every few weeks or months, depending on the medicine you’re taking

How are they given?

LAI’s are usually given into your muscle, like your buttock or arm. The frequency of injections depends on the medicine you’re taking. It might be every two weeks or every three months.

How Do LAI’s Work?

The medicine in LAI’s is wrapped in a special slow-release system. When you get the injection, the medicine starts to release into your bloodstream slowly over time. This means you’ll have a steady level of medicine in your body, and you won’t have the ups and downs that you might get with daily pills

Which Patients Can Benefit

Poor Adherence History

If you've had multiple episodes of psychotic or mood disturbances due to missed medications, long-acting injectables (LAIs) might be an excellent choice.

Frequent Relapses

If you’ve had a lot of episodes of psychotic or mood disturbances because you didn’t take your medicine, LAIs might be a good choice.

Severity of Symptoms

If severe symptoms make it difficult to take daily medication consistently, long-acting injectables (LAIs) could be a more effective option for you.

Cognitive Impairment

If you have trouble remembering to take your medicine because of your thinking skills, LAI's might be a better option.

Patient Preference

Some individuals may prefer the convenience of receiving an injection every few weeks rather than remembering to take daily tablets regularly.

Lack of Insight

If you have limited insight into your condition or struggle to understand why medication is necessary, long-acting injectables (LAIs) may be beneficial.

Schizophrenia

Long-Acting Antipsychotics (LAIs) reduce hallucinations and delusions while stabilizing mood and behavior in schizophrenia.

LAIs demonstrate high efficacy in preventing relapses and reducing hospitalizations.

Bipolar Disorder

LAIs are instrumental in managing manic episodes and mitigating mood swings in bipolar disorder.

They contribute to maintaining a stable mood for an extended period and reducing the frequency of mood episodes, leading to improved overall functioning.

Schizoaffective Disorder

LAIs provide comprehensive treatment for both psychotic and mood-related symptoms in schizoaffective disorder.

By facilitating improved functioning and reducing the frequency of episodes, LAIs contribute to a more manageable condition.

Summary of Scientific Evidence Regarding LAI's

Research Scope

42

Cohort Studies

101,624

People Participated

18.6

Months Followup

Baseline Characteristics

People with greater illness severity and
chronic mental health conditions

LAI Types

First-generation (e.g., fluphenazine
decanoate) and second-generation
(e.g., risperidone, paliperidone)

Duration and Dosage

Min: 24 weeks
Max: Over 18 months

Hospitalization Rate Reduction

15% reduction
Rate Ratio: 0.85; 95%, CI: 0.78–0.93; P < .001)

Illness Specific Data for LAI’s
ConditionSchizophreniaBipolar DisorderSchizoaffective Disorder
Number of Studies/Participants42 studies, 101,624 participantsLimited direct studies, but suggests efficacyFewer studies, data from schizophrenia studies
Baseline CharacteristicsSevere symptoms, chronic illness history, high non-adherenceManic and depressive episodes, non-adherence riskMood and psychotic symptoms overlap
LAI Types and DosageFirst-gen (fluphenazine), second-gen (risperidone, paliperidone)Limited data, aripiprazole LAI promisingVaries, often aligns with schizophrenia regimens
DurationMin 24 weeks, some >18 monthsVaried, often shorter trialsLong-term studies limited
Effectiveness OutcomesLower relapse rates, improved adherence, fewer hospitalizationsStabilized mood, reduced relapsesImproved mood and psychotic symptoms, reduced hospitalizations
Impact on Burden of IllnessReduced admissions, better long-term outcomesImproved quality of life, fewer severe episodesBetter symptom control, lower caregiver burden
Cost ReductionLower hospitalization and crisis costsPotential cost benefitsAnticipated cost savings
Repeat Hospitalization ReductionSignificant reductionReduced manic/depressive admissionsModerate evidence, more research needed
Antipsychotic EquivalencyNot uniformly reportedAripiprazole-based studies show some equivalencyVaries by medication