Summary of Drugs for Anxiety & Sleep Disorders for Dental Practice
This summary outlines the pharmacological agents used for anxiety and sleep disorders, with a focus on their specific side effects and key implications for dental practice.
Non-Pharmacological Treatment
Before pharmacological intervention, non-drug treatments are considered first-line. These include Cognitive Behavioural Therapy (CBT) for both insomnia and anxiety, as well as practicing good sleep hygiene principles.
Pharmacological Treatments and Their Dental Implications
Benzodiazepines
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Examples: Diazepam (Valium), Alprazolam, Lorazepam, Midazolam.
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Note: These are typically used for short-term relief due to a high risk of dependence.
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Adverse Effects: Benzodiazepines as a class can cause drowsiness, oversedation, lightheadedness, ataxia (loss of coordination), and paradoxically, either dry mouth or hypersalivation (drooling).
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Dental Implications & Interactions:
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The sedative effects of benzodiazepines are additive with other CNS depressants.
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Specific interactions include:
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Alprazolam: Itraconazole and ketoconazole can enhance its sedative and respiratory depressant effects.
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Diazepam: Fluconazole can increase its adverse effects.
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Midazolam: CYP3A4 inhibitors can enhance its sedative and respiratory depressant effects.
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Non-amphetamine Psychostimulants
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Examples: Armodafinil (Nuvigil), Modafinil (Modafin).
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Adverse Effects: This class of drugs can cause dry mouth, headache, anxiety, palpitations, nervousness, dizziness, and hypertension.
Orexin Receptor Antagonists
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Examples: Lemborexant (Dayvigo), Suvorexant (Belsomra).
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Adverse Effects: This class of drugs is noted to cause headaches.
Other Drugs for Sleep
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Sedating Antihistamines (e.g., diphenhydramine, doxylamine):
- Adverse Effects: These drugs can cause sedation, psychomotor impairment, dizziness, confusion, headache, and dry mouth.
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GABA Agonists (e.g., zolpidem, zopiclone):
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Adverse Effects: Zopiclone (Imrest) is specifically noted to cause a taste disturbance (bitter), dry mouth, drowsiness, and impaired alertness the next morning.
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Interactions: The effects of GABA agonists are additive with other CNS depressants.
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Melatonin (Circadin):
- Adverse Effects: The document notes no dental-related adverse effects for melatonin.
Overall Dental Management Summary
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CNS Depression: Be aware of the increased risk of sedation when patients are taking benzodiazepines, sedating antihistamines, or GABA agonists, and avoid co-prescribing other CNS depressants.
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Dry Mouth: This is a common side effect, particularly with non-amphetamine psychostimulants, sedating antihistamines, and zopiclone, increasing the risk for caries and mucosal issues.
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Taste Disturbance: A notable bitter taste is specifically associated with zopiclone.
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Patient Management: Schedule appointments when patients are most alert, provide clear aftercare instructions, and emphasize meticulous oral hygiene to manage side effects like dry mouth.