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# TUSQ 25252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525 QD
## Overview
Tusqd is a brand name for a combination medication containing guaifenesin and dextromethorphan. Guaifenesin is an expectorant that helps loosen mucus in the airways, while dextromethorphan is a cough suppressant.
## Primary Indications
* Relief of cough associated with the common cold, bronchitis, or other respiratory conditions.
* Aids in loosening phlegm and thinning bronchial secretions to make coughs more productive.
## Adult Dosing
* **Guaifenesin/Dextromethorphan Extended-Release:** Typically 10 mL to 20 mL orally every 12 hours.
* **Maximum Dose:** Varies by specific product formulation; always consult the package insert for the specific product being used.
## Pediatric Dosing
Dosing varies significantly by age and product formulation.
* **Children 6-12 years:** Typically 5 mL to 10 mL orally every 12 hours.
* **Children younger than 6 years:** Consult a pediatrician. Not recommended for children under 6 years without medical supervision.
## Dose Adjustments
* **Renal Impairment:** No specific adjustments are typically recommended, but caution may be advised in severe impairment.
* **Hepatic Impairment:** No specific adjustments are typically recommended, but caution may be advised in severe impairment.
## Contraindications
* Hypersensitivity to guaifenesin or dextromethorphan.
* Use of MAO inhibitors or within 14 days of discontinuing MAO inhibitors.
* Asthma, emphysema, or chronic bronchitis where excessive drying of secretions may be harmful.
## Adverse Effects
* **Common:** Dizziness, drowsiness, nausea, vomiting, stomach upset.
* **Less Common:** Confusion, nervousness, rash.
* **Dextromethorphan Specific:** Serotonin syndrome (rare but serious, especially with co-administration of other serotonergic agents).
## Key Drug Interactions
* **MAO Inhibitors:** Increased risk of hypertensive crisis.
* **Serotonergic Agents (SSRIs, SNRIs, tricyclic antidepressants, triptans, St. John's Wort):** Increased risk of serotonin syndrome.
* **CNS Depressants (alcohol, benzodiazepines, opioids):** Additive sedative effects.
## Monitoring
* Effectiveness of cough suppression and mucus expectoration.
* Signs of adverse effects, including drowsiness, dizziness, and respiratory depression.
* For patients with underlying respiratory conditions, monitor for any worsening of symptoms.
## Clinical Pearls
* Extended-release formulations should not be crushed or chewed.
* Ensure adequate hydration to help loosen mucus.
* Advise patients to avoid activities requiring mental alertness until they know how the medication affects them.
* Be aware of potential for abuse of dextromethorphan at supratherapeutic doses.
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**Educational Disclaimer:** This information is intended for healthcare professionals. Always consult the most current prescribing information and relevant clinical guidelines for complete details and to confirm suitability for individual patients. Dosing and recommendations may vary based on specific product formulation and local protocols.
