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Homatropine / Hydrocodone Dosage

Medically reviewed by Last updated on Aug 14, 2023.

Applies to the following strengths: 1.5 mg-5 mg; 1.5 mg-5 mg/5 mL

Usual Adult Dose for Cough

One tablet OR 5 mL orally every 4 to 6 hours as needed
Maximum dose: 6 tablets OR 30 mL in 24 hours


  • Each tablet contains hydrocodone 5 mg-homatropine 1.5 mg
  • Each 5 mL contains hydrocodone 5 mg-homatropine 1.5 mg

Use: Symptomatic relief of cough.

Renal Dose Adjustments

Use with caution

Liver Dose Adjustments

Use with caution

Dose Adjustments

Elderly: Use with caution


The US FDA requires a Risk Evaluation and Mitigation Strategy (REMS) for all opioids intended for outpatient use. The new FDA Opioid Analgesic REMS is a designed to assist in communicating the serious risks of opioid pain medications to patients and health care professionals. It includes a medication guide and elements to assure safe use. For additional information:


  • Use of this product may lead to opioid addiction, abuse, and misuse, which can lead to overdose and death.
  • Opioid Analgesic REMS: To ensure that the benefits of opioid analgesics outweigh the risks of addiction, abuse, and misuse, a REMS is required for these products. Under the requirements of the REMS, drug companies with approved opioid analgesic products must make REMS-compliant education programs available to healthcare providers. Healthcare providers are strongly encouraged to complete a REMS-compliant education program; counsel patients and/or their caregivers, with every prescription on safe use, serious risks, storage, and disposal of these products; emphasize to patients and their caregivers the importance of reading the Medication Guide every time it is provided by their pharmacist, and consider other tools to improve patient, household, and community safety.
  • Reserve use of this drug for adults for whom cough suppression benefits outweigh risks, and who have had adequate assessment of the cough aetiology.
  • Assess each patients risks prior to prescribing; prescribe for the shortest duration consistent with individual treatment goals, and monitor all patients regularly for development of addiction or abuse; refill only after evaluating the need for continued treatment.
  • Serious, life-threatening, or fatal respiratory depression may occur with use.
  • Monitor for respiratory depression, especially at the beginning of therapy or in high risk patients.
  • Accidental ingestion of even one dose of this drug, especially by children, can cause a fatal overdose of hydrocodone.
  • Ensure accuracy when prescribing, dispensing, and administering this drug.
  • Dosing errors can cause accidental overdose and death.
  • Always use an accurate milliliter measuring device when measuring and administering liquid medications.
  • Concomitant use with all CYP450 3A4 inhibitors may increase plasma hydrocortisone concentrations, potentially increasing or prolonging adverse drug effects, and may potentially lead to fatal respiratory depression.
  • Discontinuing a concomitant CYP450 3A4 inducer may cause increased plasma hydrocodone concentration.
  • Avoid use in patients taking CYP450 3A4 inhibitors or inducers.
  • Concomitant use of opioids with benzodiazepines or other CNS depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. Avoid use of opioid cough medications in patients taking benzodiazepines, other CNS depressants, or alcohol.
  • Instruct patients not to consume alcohol or use prescription or non-prescription products containing alcohol while on this medication.
  • Co-ingestion with alcohol may cause increased plasma levels and a potentially fatal overdose of hydrocodone.
  • Use is not recommended in pregnant women.
  • Prolonged use during pregnancy may cause neonatal opioid withdrawal syndrome, which can be life-threatening if not recognized and treated, and requires management according to neonatology expert protocols.
  • If used for a prolonged period during pregnancy, advise the patient of the neonatal opioid withdrawal syndrome risk and ensure appropriate treatment will be available.

Safety and efficacy of the immediate-release oral solution have not been established in patients younger than 18 years.

Consult WARNINGS section for additional precautions.

US Controlled Substance: Schedule II


Data not available

Other Comments

Administration advice:

  • Take orally as needed for cough
  • Measure oral syrup with an accurate measuring device; a household teaspoon should not be considered an accurate measuring device

Storage requirements:
  • Protect from light

  • The US FDA recommends against use of hydrocodone-containing cough and cold medications in patients less than 18 years because it has been determined that the risks outweigh benefits.
  • Hydrocodone is the active component of this combination product; homatropine is included in a subtherapeutic amount to discourage deliberate overdose.

  • Monitor for respiratory difficulties
  • Monitor for the development of addiction, abuse, or misuse

Patient advice:
  • Advise patients to always use an accurate milliliter measuring device when measuring and giving liquid medications.
  • Inform patients that a household teaspoon is not an accurate measuring device and could lead to overdosage and serious adverse effects.
  • If a measuring device is not provided, a pharmacist can provide an appropriate measuring device and instructions for measuring the correct dose.
  • Advise patients to store this drug safely out of the sight and reach of children; accidental use by a child should be considered a medical emergency as it can result in death.
  • Patients should understand the risks of life-threatening respiratory depression, and should be informed as to when this risk is greatest.
  • Women of child bearing potential should understand that prolonged opioid use during pregnancy can result in neonatal opioid withdrawal syndrome and that prompt recognition and treatment will be necessary; breastfeeding women should speak to their health care provider prior to using this drug.
  • Patients should be instructed in proper disposal.
  • Patients should not consume alcoholic beverages or take this drug with benzodiazepines or other CNS depressants; patients should avoid driving or operating machinery while taking this drug.
  • Patients should be instructed to read the US FDA-approved Medication Guide each time this drug is dispensed; they should understand the safe use, serious risks, and proper storage and disposal of this drug.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.