Tussionex Dosing Recommendations
For adults and children ≥12 years: 5 mL every 12 hours (maximum 10 mL/24 hours); for children 6-11 years: 2.5 mL every 12 hours (maximum 5 mL/24 hours); contraindicated in children <6 years. 1
FDA-Approved Dosing by Age
The FDA drug label provides explicit dosing parameters 1:
- Adults and Children ≥12 years: 5 mL every 12 hours; do not exceed 10 mL in 24 hours
- Children 6-11 years: 2.5 mL every 12 hours; do not exceed 5 mL in 24 hours
- Children <6 years: Contraindicated
Each 5 mL contains hydrocodone polistirex equivalent to 10 mg hydrocodone bitartrate and chlorpheniramine polistirex equivalent to 8 mg chlorpheniramine maleate 1.
Critical Administration Requirements
Use only an accurate measuring device—never a household teaspoon, which can lead to overdosage. 1 The medication comes with a dosing spoon calibrated for 2.5 mL on one side and 5 mL on the other. Shake well before each use and rinse the measuring device after administration 1.
Important Safety Context
Opioid Dosing Principles
When initiating any opioid therapy, start at the lowest effective dose. For opioid-naïve patients, this typically means 5-10 MME per single dose or 20-30 MME/day 2. Exercise additional caution in patients ≥65 years or those with renal/hepatic insufficiency due to narrower therapeutic windows 2.
Avoid dosage increases beyond 50 MME/day without careful reassessment, as overdose risk increases substantially with higher doses while pain control improvements plateau 2.
Pediatric Contraindication Rationale
The FDA recently determined that hydrocodone-containing cough medications should not be used in patients <18 years due to unfavorable benefit-risk profiles 3. A comprehensive safety review found no robust efficacy data for hydrocodone/chlorpheniramine in relieving cough in pediatric patients, while identifying serious adverse events including respiratory depression and fatalities (primarily from overdose) 3. Despite current FDA labeling permitting use in children 6-11 years, prescribing to any pediatric patient warrants extreme caution given this evidence.
Common Pitfalls to Avoid
- Measurement errors: Household spoons vary widely in volume and frequently lead to overdosing
- Frequency errors: This is a 12-hour extended-release formulation—do not dose more frequently
- Age miscalculation: Verify the child's age carefully; the 6-year cutoff is absolute
- Concurrent opioids: Account for all opioid sources when calculating total MME exposure 2
- Rapid escalation: Dosage increases in opioid-naïve patients with acute symptoms are usually unnecessary and dangerous 2