Revised Summary of Antidepressants for Dental Practice
This summary outlines the key classes of antidepressant medications, explicitly linking their side effects and dental implications to the specific drugs responsible, based on the provided lecture notes.
Indications and General Adverse Effects
-
Indications: Antidepressants are prescribed for major depression, anxiety disorders, and some eating disorders.
-
General Concerns:
-
Serotonin Toxicity: A risk when antidepressants are co-prescribed with certain drugs, notably tramadol.
-
Withdrawal Effects: Discontinuing these medications can cause nausea, anxiety, and tremor.
-
Antidepressant Drug Classes and Their Side Effects
Monoamine Oxidase Inhibitors (MAOIs)
-
Adverse Effects: MAOIs can cause orthostatic hypotension, headache, drowsiness, tremor, dizziness, and dry mouth.
-
Dental Implications:
-
The effects of adrenaline may be increased in patients taking MAOIs.
-
Tramadol is contraindicated with MAOIs due to the risk of serotonin toxicity.
-
Selective Serotonin Reuptake Inhibitors (SSRIs)
-
Example Drugs: Citalopram (Celapram), Fluoxetine (Zactin), Sertraline (Setrona).
-
Adverse Effects: SSRIs as a class are associated with agitation, drowsiness, tremor, dry mouth, dizziness, headache, and sweating.
-
Dental Implications:
-
Tramadol should not be co-prescribed with SSRIs due to the risk of serotonin toxicity.
-
Specific SSRIs like citalopram and escitalopram carry a risk of QT prolongation.
-
Fluoxetine and fluvoxamine inhibit the CYP3A4 enzyme, affecting the metabolism of other drugs.
-
Tricyclic Antidepressants (TCAs)
-
Example Drugs: Amitriptyline (Endep), Nortriptyline (Allegron).
-
Adverse Effects: TCAs commonly cause sedation, dry mouth, orthostatic hypotension, tremor, and dizziness.
-
Dental Implications:
- Using adrenaline with TCAs can have added sympathomimetic effects, increasing the risk of a hypertensive crisis.
Serotonin and Noradrenaline Reuptake Inhibitors (SNRIs)
-
Example Drugs: Desvenlafaxine (Pristiq), Duloxetine (Tixol).
-
Adverse Effects: SNRIs can cause dry mouth, sweating, dizziness, headache, and tremor. Orthostatic hypotension is an infrequent side effect.
-
Dental Implications:
- There is a risk of serotonin toxicity when SNRIs are taken with tramadol.
Other Antidepressants
This group includes various drugs with specific side effect profiles:
-
Mianserin (Lumin): Causes sedation, dry mouth, dizziness, and vertigo.
-
Mirtazepine (Axit): Causes sedation and weakness, and rarely, orthostatic hypotension or seizures.
-
Moclobemide (Amira): Causes dry mouth, anxiety, dizziness, and headache.
-
Reboxetine (Edronax): Causes dry mouth, sweating, orthostatic hypotension, headache, paraesthesia, and dizziness.
-
Vortioxetine (Brintellix): Causes dry mouth and itch.
Overall Dental Implications Summary
-
Drug Interactions:
-
Adrenaline: Use with caution in patients taking TCAs or MAOIs due to the risk of a hypertensive crisis.
-
Tramadol: Avoid prescribing with SSRIs, SNRIs, and MAOIs due to the risk of serotonin toxicity.
-
-
Common Adverse Effects:
-
Dry Mouth: This is a very common side effect of many antidepressants, including TCAs, SSRIs, SNRIs, mianserin, moclobemide, reboxetine, and vortioxetine, increasing the risk of caries.
-
Orthostatic Hypotension: This is a risk with MAOIs, TCAs, reboxetine, and infrequently with SNRIs and mirtazepine, requiring caution when repositioning the patient.
-