Trazodone is an antidepressant drug. The antidepressant action of this drug is due to its serotonin antagonist action and it is of re-uptake inhibitor class. The main use of the drug is to control major depression. ?It has potent anxiolytic and sleep-inducing effects. The side effects and toxicity profile of this drug are considerably different from other typical antidepressants thus it is suitable for the elderly.
For most medical purposes, this drug is used as an anti anxiety agent and anti depressant of mild to moderate levels. It may also be used to help manage Obsessive Compulsive Disorders. In some countries, it is also used for insomnia as an off label use.
Dosage and administration
This drug is consumed orally by patients with depression and the doses may either be 50 mg or 100 mg as per the requirement. In adults, this drug should initially be taken at 150 mg daily and may gradually be increased up to 300 to 400 mg daily. Elderly patients should begin with 100 mg and the dosage may be gradually increased up to 300 mg daily. The daily dosage can be given in divided doses throughout the day or as a single dose at night. The maximum dosage of 600 mg daily, taken in divided doses, has been prescribed for severe depression. For adults suffering from anxiety, start with 75 mg daily and increase up to 300 mg daily if necessary.
Precautionary measures have to be taken in cases with hepatic impairment.
- The drug can diminish the actions of few anti-hypertensives, such as clonidine.
- It should not be used along with anti fungals, some HIV drugs, and antibiotics.
- There is also increased risk of severe hypotension and hepatic damage if used with certain drugs.
- In patients with mood disorders and are on lithium therapy, it is better to avoid this drug as some side effects like neurotoxicity and serotonin syndrome may occur.
- Sedative effects may be enhanced by alcohol and CNS depressants.
- It has potentially fatal reactions with MAO Inhibitors and it should not be taken within two weeks after discontinuing taking MAO inhibitors. MAO inhibitors should also not be taken within 1 week after stopping this drug therapy.
The potential side effects of Trazodone are:
- -Weight loss
- -Dry mouth
It may also cause fatal side effects such as,
- -Blood dyscrasias
- -Hepatocellular damage
- -Neuroleptic malignant syndrome
The symptoms and signs of an overdose are:
- -Respiratory arrest
- -Alterations in ECG
Please get help immediately from a medical professional in case of a suspected overdose. Cases of overdose are potentially life-threatening and can be managed by gastric lavage. Activated charcoal may also be utilized if used within one hour by adults who have taken more than 1 gm or children who have taken more than 150 mg. Treatment is symptomatic and supportive. Haemodialysis is unlikely to be useful.
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