November 2017

November 30, 2017

Drugs Used in Nausea and Vertigo

Management of vestibular diseases is aimed at treating the underlying cause as well as treating symptoms of the balance disturbance and associated nausea and vomiting. Vertigo and nausea associated with Ménière’s disease and middle-ear surgery can be difficult to treat.Betahistine is an analogue of histamine and is claimed to reduce endolymphatic pressure by improving the microcirculation. Betahistine is licensed for vertigo, tinnitus, and hearing loss associated with Ménière's disease.
November 30, 2017

Drugs Used in the Treatment of Obesity

An anti-obesity drug should be considered only for those with a body mass index (BMI, individual’s body-weight divided by the square of the individual’s height) of 30 kg/m2 or greater in whom at least 3 months of managed care involving supervised diet, exercise and behaviour modification fails to achieve a realistic reduction in weight. In the presence of risk factors (such as diabetes, coronary heart disease, hypertension, and obstructive sleep apnoea), it may be appropriate to prescribe a drug to individuals with a BMI of 27 kg/m2 or greater, provided that such use is permitted by the drug’s marketing authorisation.
November 30, 2017

Other Antidepressant Drugs

Mirtazapine, a presynaptic alpha2-adrenoreceptor antagonist, increases central noradrenergic and serotonergic neurotransmission. It has few antimuscarinic effects, but causes sedation during initial treatment. Venlafaxine is a serotonin and noradrenaline re-uptake inhibitor (SNRI); it lacks the sedative and antimuscarinic effects of the tricyclic antidepressants. Tianeptine is an antidepressant agent with a novel neurochemical profile. It increases serotonin (5-hydroxytryptamine; 5-HT) uptake in the brain (in contrast with most antidepressant agents) and reduces stress-induced atrophy of neuronal dendrites. Like the selective serotonin reuptake inhibitors (SSRIs) and in contrast with most tricyclic antidepressant agents, tianeptine does not appear to be associated with adverse cognitive, psychomotor, sleep, cardiovascular or bodyweight effects and has a low propensity for abuse.
November 30, 2017

Tricyclic and related antidepressant drugs

Tricyclic and related antidepressants block the re-uptake of both serotonin and noradrenaline, although to different extents. Tricyclic and related antidepressants also show varying degrees of antimuscarinic side-effects and cardiotoxicity in overdosage, which may be important in individual patients. Evidence of the efficacy of tricyclic antidepressants for depression in children has not been established.
November 28, 2017

Antimanic Drugs

Drugs are used in mania to control acute attacks and to prevent their recurrence.
November 28, 2017

Antidepressant Drugs

Antidepressant drugs are effective for treating moderate to severe depression associated with psychomotor and physiological changes such as loss of appetite and sleep disturbance; improvement in sleep is usually the first benefit of therapy.
November 28, 2017

Antipsychotic Depot Injection

Long-acting depot injections are used for maintenance therapy especially when compliance with oral treatment is unreliable. However, depot injections of conventional antipsychotics may give rise to […]
November 28, 2017

Atypical Antipsychotics

The 'atypical antipsychotics' may be better tolerated than other antipsychotics; extrapyramidal symptoms may be less frequent than with older antipsychotics. the atypical antipsychotics should be considered when choosing first-line treatment of newly diagnosed schizophrenia. an atypical antipsychotic is considered the treatment option of choice for managing an acute schizophrenic episode when discussion with the individual is not possible. an atypical antipsychotic should be considered for an individual who is suffering unacceptable side-effects from a conventional antipsychotic. an atypical antipsychotic should be considered for an individual in relapse whose symptoms were previously inadequately controlled. changing to an atypical antipsychotic is not necessary if a conventional antipsychotic controls symptoms adequately and the individual does not suffer unacceptable side-effects.
November 28, 2017

Drugs used in Psychosis and related disorders

When prescribing an antipsychotic for administration on an emergency basis, the intramuscular dose should be lower than the corresponding oral dose (owing to absence of first-pass effect), particularly if the patient is very active (increased blood flow to muscle considerably increases the rate of absorption). The prescription should specify the dose for each route and should not imply that the same dose can be given by mouth or by intramuscular injection. The dose of antipsychotic for emergency use should be reviewed at least daily.
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