Self-medication
Self-medication, sometimes called do-it-yourself 'medicine,' is a human behavior in which an individual uses a substance or any exogenous influence to self-administer treatment for physical or psychological conditions, for example headaches or fatigue.
The substances most widely used in self-medication are over-the-counter drugs and dietary supplements, which are used to treat common health issues at home. These do not require a doctor's prescription to obtain and, in some countries, are available in supermarkets and convenience stores.
The field of psychology surrounding the use of psychoactive drugs is often specifically in relation to the use of recreational drugs, alcohol, comfort food, and other forms of behavior to alleviate symptoms of mental distress, stress and anxiety, including mental illnesses or psychological trauma. Such treatment may cause serious detriment to physical and mental health if motivated by addictive mechanisms. In postsecondary students, self-medication with "study drugs" such as Adderall, Ritalin, and Concerta has been widely reported and discussed in literature.
Products are marketed by manufacturers as useful for self-medication, sometimes on the basis of questionable evidence. Claims that nicotine has medicinal value have been used to market cigarettes as self-administered medicines. These claims have been criticized as inaccurate by independent researchers. Unverified and unregulated third-party health claims are used to market dietary supplements.
Self-medication is often seen as gaining personal independence from established medicine, and it can be seen as a human right, implicit in, or closely related to the right to refuse professional medical treatment. Self-medication can cause unintentional self-harm. Self-medication with antibiotics has been identified as one of the primary reasons for the evolution of antimicrobial resistance.
Sometimes self-medication or DIY medicine occurs because patients disagree with a doctor's interpretation of their condition, to access experimental therapies that are not available to the public, or because of legal bans on healthcare, as in the case of some transgender people or women seeking self-induced abortion. Other reasons for relying on DIY medical care is to avoid health care prices in the United States and anarchist beliefs.
Definition
Generally speaking, self-medication is defined as "the use of drugs to treat self-diagnosed disorders or symptoms, or the intermittent or continued use of a prescribed drug for chronic or recurrent disease or symptoms".Self-medication can be defined as the use of drugs to treat an illness or symptom when the user is not a medically qualified professional. The term is also used to include the use of drugs outside their license or off-label.
Psychology and psychiatry
Self-medication hypothesis
As different drugs have different effects, they may be used for different reasons. According to the self-medication hypothesis, the individuals' choice of a particular drug is not accidental or coincidental, but instead, a result of the individuals' psychological condition, as the drug of choice provides relief to the user specific to his or her condition. Specifically, addiction is hypothesized to function as a compensatory means to modulate effects and treat distressful psychological states, whereby individuals choose the drug that will most appropriately manage their specific type of psychiatric distress and help them achieve emotional stability.The self-medication hypothesis originated in papers by Edward Khantzian, Mack and Schatzberg, David F. Duncan, and a response to Khantzian by Duncan. The SMH initially focused on heroin use, but a follow-up paper added cocaine. The SMH was later expanded to include alcohol, and finally all drugs of addiction.
According to Khantzian's view of addiction, drug users compensate for deficient ego function by using a drug as an "ego solvent", which acts on parts of the self that are cut off from consciousness by defense mechanisms. According to Khantzian, drug dependent individuals generally experience more psychiatric distress than non-drug dependent individuals, and the development of drug dependence involves the gradual incorporation of the drug effects and the need to sustain these effects into the defensive structure-building activity of the ego itself. The addict's choice of drug is a result of the interaction between the psychopharmacologic properties of the drug and the affective states from which the addict was seeking relief. The drug's effects substitute for defective or non-existent ego mechanisms of defense. The addict's drug of choice, therefore, is not random.
While Khantzian takes a psychodynamic approach to self-medication, Duncan's model focuses on behavioral factors. Duncan described the nature of positive reinforcement, negative reinforcement and avoidance of withdrawal symptoms, all of which are seen in those who develop problematic drug use, but are not all found in all recreational drug users. While earlier behavioral formulations of drug dependence using operant conditioning maintained that positive and negative reinforcement were necessary for drug dependence, Duncan maintained that drug dependence was not maintained by positive reinforcement, but rather by negative reinforcement. Duncan applied a public health model to drug dependence, where the agent infects the host through a vector, while the environment supports the disease process, through stressors and lack of support.
Khantzian revisited the SMH, suggesting there is more evidence that psychiatric symptoms, rather than personality styles, lie at the heart of drug use disorders. Khantzian specified that the two crucial aspects of the SMH were that drugs of abuse produce a relief from psychological suffering and the individual's preference for a particular drug is based on its psychopharmacological properties. The individual's drug of choice is determined through experimentation, whereby the interaction of the main effects of the drug, the individual's inner psychological turmoil, and underlying personality traits identify the drug that produces the desired effects.
Meanwhile, Duncan's work focuses on the difference between recreational and problematic drug use. Data obtained in the Epidemiologic Catchment Area Study demonstrated that only 20% of drug users ever experience an episode of drug abuse, while data obtained from the National Comorbidity Study demonstrated that only 15% of alcohol users and 15% of illicit drug users ever become dependent. A crucial determinant of whether a drug user develops drug abuse is the presence or absence of negative reinforcement, which is experienced by problematic users, but not by recreational users. According to Duncan, drug dependence is an avoidance behavior, where an individual finds a drug that produces a temporary escape from a problem, and taking the drug is reinforced as an operant behavior.
Specific mechanisms
Some people who have a mental illness attempt to correct their illnesses by using certain drugs. Depression is often self-medicated by the use of alcohol, tobacco, cannabis, or other mind-altering drugs. While this may provide immediate relief of some symptoms such as anxiety, it may evoke and/or exacerbate some symptoms of several kinds of mental illnesses that are already latently present, and may lead to addiction or physical dependency, among other side effects of long-term use of the drug. This does not differ significantly from the potential effects of drugs provided by physicians, which are equally capable of producing dependency and/or addiction and also have side effects arising from long-term use.People with post-traumatic stress disorder have been known to self-medicate, as well as many individuals without this diagnosis who have experienced psychological trauma.
Due to the different effects of the different classes of drugs, the SMH postulates that the appeal of a specific class of drugs differs from person to person. In fact, some drugs may be aversive for individuals for whom the effects could worsen affective deficits.
CNS depressants
and sedative/hypnotic drugs, such as barbiturates and benzodiazepines, are central nervous system depressants that lower inhibitions via anxiolysis. Depressants produce feelings of relaxation and sedation, while relieving feelings of depression and anxiety. Though they are generally ineffective antidepressants, as most are short-acting, the rapid onset of alcohol and sedative/hypnotics softens rigid defenses and, in low to moderate doses, provides relief from depressive affect and anxiety. As alcohol also lowers inhibitions, alcohol is also hypothesized to be used by those who normally constrain emotions by attenuating intense emotions in high or obliterating doses, which allows them to express feelings of affection, aggression and closeness. Most patients that have been hospitalized for substance use or alcohol dependence reported using drugs in response to depressive symptoms. This type of misuse is more likely in men than in women. This makes diagnosing a psychiatric disorder very difficult in substance abusers, because of self medicating.Alcohol
People with social anxiety disorder commonly use alcohol to overcome their highly set inhibitions.Psychostimulants
, such as cocaine, amphetamines, methylphenidate, caffeine, and nicotine, produce improvements in physical and mental functioning, including increased energy and alertness. Stimulants tend to be most widely used by people with attention deficit hyperactivity disorder, which can either be diagnosed or undiagnosed. Because a significant portion of people with ADHD have not been diagnosed they are more prone to using stimulants like caffeine, nicotine or pseudoephedrine to mitigate their symptoms. Unawareness concerning the effects of illicit substances such as cocaine, methamphetamine or mephedrone can result in self-medication with these drugs by individuals affected with ADHD symptoms. This self medication can effectively prevent them from getting diagnosed with ADHD and receiving treatment with stimulants like methylphenidate and amphetamines.Stimulants also can be beneficial for individuals who experience depression, to reduce anhedonia and increase self-esteem, however in some cases depression may occur as a comorbid condition originating from the prolonged presence of negative symptoms of undiagnosed ADHD, which can impair executive functions, resulting in lack of motivation, focus and contentment with one's life, so stimulants may be useful for treating treatment-resistant depression, especially in individuals thought to have ADHD. The SMH also hypothesizes that hyperactive and hypomanic individuals use stimulants to maintain their restlessness and heighten euphoria. Additionally, stimulants are useful to individuals with social anxiety by helping individuals break through their inhibitions. Some reviews suggest that students use psychostimulants to self medicate for underlying conditions, such as ADHD, depression or anxiety.