Aggression SSRIs

Breggin has documented how SSRIs can provoke an agitated, restless state called akathisia, which some people describe as feeling like jumping out of their skin.9 It is often in this state that people on SSRIs become violent and aggressive towards themselves or others. 

Serotonin-Boosting Antidepressants. Antidepressants that enhance serotonin activity in the brain have also been studied in ADHD. In particular, fluoxetine (Prozac) and the serotonin-selective TCA clomipramine (Anafranil) have been the most extensively evaluated, with mixed success. They provide some benefit for aggression and impulsivity but don t significantly improve the poor attention of ADHD. As a result, the SSRls and other serotonin-boosting antidepressants do not appear to be effective first-line treatments for ADHD. Conversely, depressed patients without ADHD often show improvements in symptoms of concentration and attention when treated with a SSRI. Although SSRls are not widely used in the treatment of ADHD, they may be worthy of consideration in ADHD patients whose impulsivity is not controlled by stimulants alone. Those with comorbid conduct disorder or ODD who are prone to agitation and at times violent outbursts may be helped by the addition of a SSRI. 

Brief Mild Agitation. For the acnte treatment of mild agitation without physical aggression, low doses of trazodone are preferred. If this mild agitation persists, several options are available. Yonr patient s physician may continne to nse trazodone or may prefer sodinm divalproex (Depakote), bnspirone (Buspar), or any of the SSRI antidepressants. These are all well tolerated bnt should be started at low doses and slowly raised npward as needed. 

Chronic Agitation. For chronic agitation with physical aggression, sodium divalproex is the preferred treatment. If divalproex is ineffective, haloperidol or an atypical antipsychotic can be added or snbstituted. Other options include trazodone, carbamazepine, and SSRI antidepressants. 

Antidepressants. In our experience, clinicians who are trying to manage the behavior of impulsive or aggressive patients too often overlook antidepressants. Antidepressants are often just as effective as anticonvulsants, antipsychotics, or benzodiazepines, especially when managing mild-to-moderate behavioral disturbances. Furthermore, antidepressants are generally easier to use and easier to tolerate than these alternatives. Once again, the SSRIs are best studied and so represent the favored first-line treatment for managing mild-to-moderate behavioral lability... 

The selective serotonin reuptake inhibitors (SSRI) have been used in adults for a wide variety of disorders, including major depression, social anxiety (social phobia), generalized anxiety disorder (GAD), eating disorders, premenstrual dysphoric disorder (PMDD), post-traumatic stress disorder (PTSD), panic, obsessive-compulsive disorder (OCD), trichotillomania, and migraine headaches. Some of the specific SSRI agents have an approved indication in adults for some of these disorders, as reviewed later in this chapter. The SSRIs have also been tried in children and in adults for symptomatic treatment of pain syndromes, aggressive or irritable ( short fuse ) behavior, and for self-injurious and repetitive behaviors. This chapter will review general aspects of the SSRIs and discuss their approved indications in children and adolescents. 

In a retrospective case analysis, fluoxetine (20 to 80 mg daily) and paroxetine (20 to 40 mg daily) were found to be effective in approximately one-quarter of adults (mean age, 39 years) with intellectual disability and autistic traits (Branford et al., 1998). The sample consisted of all intellectually disabled subjects who had been treated with a SSRI over a 5-year period within a health-care service in Great Britain. The mean duration of treatment was 13 months. Target symptoms were perseverative behaviors, aggression, and self-injurious behavior. Six of 25 subjects treated with fluoxetine and 3 of 12 subjects given paroxetine were rated as much improved or very much improved on the CGI. 

RBD is characterized by a relative absence of the atonia characteristic of REM sleep. This lack of atonia permits the physical acting out of dream mentation, particularly dreams involving confrontation, aggression and violence. RBD is seen most frequently in older men. RBD occurs in both acute and chronic forms. Acute RBD can occur during withdrawal from alcohol or sedative-hypnotics. RBD has also been induced by the tricyclics, SSRIs and venlafaxine. The chronic form of RBD may occur as part of an identifiable underlying neurological disorder, but typically is idiopathic. RBD may also be an initial manifestation of parkinsonism. RBD is very responsive to clonazepam, although this use has not been FDA approved. 

Treatment of PTSD has largely been dependent on antidepressants (TCAs, MAOs and more recently the SSRIs) but other approaches have been to use anti-adrenergic drugs (such as propranolol and clonidine), carbamazepine (to reduce anger and aggressive outbursts) and lithium. However, the evidence for the efficacy of such drugs is largely based on... 

This is consistent with my testimony and publications, beginning with Toxic Psychiatry in 1991, in which I warned about both suicide and violence caused by SSRIs and with my book Medication Madness (in press), which will present dozens of case histories illustrating harm to self and to others induced by the SSRIs. The FDA continues to lag behind, however, mentioning hostility and aggression in the new labels as problems associated with SSRIs but without giving these dire outcomes sufficient emphasis. 

In various case reports in this chapter, we will find that akathisia can be found in combination with SSRI-induced mania and aggression. 

Case Reports of SSRI-induced Obsessive Suicidality and Aggression in Adults... 

A number of clinical reports have described a syndrome of obsessive SSRI-induced suicidality and aggression that seems particular to these drugs, starting with Teicher et al. (1990). These cases bear some similarity to akathisia-driven suicidality, but compulsion toward self-harm is not accompanied by the specific symptoms of akathisia. They summarized, Six depressed patients free of recent serious suicidal ideation developed intense, violent suicidal preoccupation after 2-7 weeks of fluoxetine treatment (p. 207). Additional cases and potential mechanisms of action were analyzed by Teicher et al. (1993). 

EPIDEMIOLOGICAL STUDIES AND CLINICAL TRIALS OF SSRI-INDUCED MANIA AND AGGRESSION IN ADULTS... 

The capacity for SSRIs to induce akathisia—and for akathisia to cause suicidality, aggression, and a worsening mental condition—is also recognized in the DSM-IV and the DSM-IV-TR in the section dealing with neuroleptic-induced akathisia. The DSM-IV-TR observes, Akathisia may be associated with dysphoria, irritability, aggression, or suicide attempts. It also mentions worsening of psychotic symptoms or behavioral dyscontrol. It then states, Serotonin-specific reuptake inhibitor antidepressant medications may produce akathisia that appears identical in phenomenology and treatment response to Neuroleptic-Induced Acute Akathisia (p. 801). 

The breakdown of PAEs caused by SSRIs in this study was ominous. Of the 82 children, 21% developed mood disorders, including 15% who became irritable, 10% who became anxious, 9% who became depressed, and 6% who became manic. In addition, 4% of the children became aggressive. Sleep disorders afflicted 35% of the children, including 23% feeling drowsy and 17% experiencing insomnia. Finally, 10% became psychotic ... 

Fourth, as an expert in criminal and civil cases, I have studied the lives of many individuals who—under the influence of psychoactive drugs such as SSRIs, nonselective serotonin reuptake inhibitors (NSRIs), and benzodiazepines—have committed acts of aggression that were wholly alien to their character and antithetical to their prior behavior. It is, of course, well known that the illegal use of stimulant drugs, such as meth-amphetamine and cocaine, can be associated with paranoid reactions and violence. 

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