Akathisia and an unusual symptomatic treatment: a case report

Subcutaneous Drugs and Off-label Use in Hospice and Palliative Care: A Scoping Review

BACKGROUND

Subcutaneous drug administration is an interesting approach for symptom control in hospice and palliative care. However, most drugs have no marketing authorization for subcutaneous administration and are therefore used off-label. In order to meet the requirements of a safe and effective drug therapy, especially in highly vulnerable patients, it is essential to investigate the scope of evidence of these common practices.

OBJECTIVES

The purpose of this scoping review was to provide an overview of available data on the tolerability and/or effectiveness of subcutaneously administered and off-label used drugs.

METHOD

We performed a scoping review according to the PRISMA extension to identify data available on the tolerability and/or effectiveness of 17 predefined drugs that are commonly administered subcutaneously in Swiss hospices and hospice-like institutions and that have no marketing authorization (off-label use).

RESULTS

The scoping review identified 57 studies with most data available on their tolerability (68% local, 54% systemic), clinical effects (82%), details on dosage (96%) and routes of application (100%). Information on pharmacokinetic properties was mostly missing and only available for fentanyl, levetiracetam, midazolam, and ondansetron. For seven drugs, less than five articles were identified and no studies on codeine or clonazepam were available.

CONCLUSION

This work provides an overview of current evidence on subcutaneous and off-label used drugs in hospice and palliative care. Although both are common practices, evidence on tolerability and effectiveness, particularly pharmacokinetic data, is limited and the identified information gaps need to be closed. This work establishes a basis for further research in this area.

Selective serotonin reuptake inhibitor-induced akathisia

OBJECTIVE

To review available information in the literature about akathisia (inner restlessness) caused by the selective serotonin reuptake inhibitors (SSRIs).

DATA SOURCES

Databases searched included Medline, PsychInfo, the International Pharmaceutical Abstracts, and Google Scholar. Search terms included drug-induced akathisia, psychomotor agitation, drug-induced side effect, movement disorders, and extrapyramidal symptoms. These search terms were cross-referenced with selective serotonin reuptake inhibitors and each of the currently marketed SSRIs: fluoxetine, fluvoxamine, sertraline, paroxetine, citalopram, and escitalopram.

STUDY SELECTION

Relevant articles were chosen if they specifically mentioned the word akathisia. Case reports were chosen based on a clear view that an SSRI was a contributing or causative agent of akathisia.

DATA SYNTHESIS

Recognizing akathisia is important because it can be very bothersome and may cause suicidal ideations. Akathisia can be recognized by examining symptoms, looking at predisposing factors, and using the Barnes Akathisia Rating Scale (BARS). Predisposing factors include use of multiple akathisia-inducing drugs, recent increases in SSRI dose, previous development of akathisia, baseline psychiatric disorders, and brain trauma. Treatment options include the addition of a centrally acting beta-blocker, a benzodiazepine, or an anticholinergic agent.

CONCLUSION

Pharmacists can play an active role in recognizing akathisia by being aware of its characteristics, conducting a thorough medication history to identify causative agents, and using BARS to evaluate patients. These efforts may preclude unnecessary discomfort for the patient and reduce the potential for nonadherence induced by akathisia.