Codeinedosage
codeine phosphate 2 MG/ML / promethazine hydrochloride 1.25 MG/ML Oral Solution
Dosage and administration
Adults 18 years of age and older: 5 mL every 4 to 6 hours as needed, not to exceed 6 doses (30 mL) in 24 hours. Measure Promethazine HCl and Codeine Phosphate Oral Solution with an accurate milliliter measuring device. Do not increase the dose or dosing frequency. Prescribe for the shortest duration consistent with treatment goals. Reevaluate patients with unresponsive cough in 5 days or sooner for possible underlying pathology. Reevaluate patient prior to refilling.
2.1 Important
Dosage and Administration Instructions Administer Promethazine HCl and Codeine Phosphate Oral Solution by the oral route only. Always use an accurate milliliter measuring device when administering Promethazine HCl and Codeine Phosphate Oral Solution to ensure that the dose is measured and administered accurately. A household teaspoon is not an accurate measuring device and could lead to overdosage. For prescriptions where a measuring device is not provided, a pharmacist can provide an appropriate measuring device and can provide instructions for measuring the correct dose. Do not overfill. Rinse the measuring device with water after each use. Advise patients not to increase the dose or dosing frequency of Promethazine HCl and Codeine Phosphate Oral Solution because serious adverse events such as respiratory depression may occur with overdosage. The dosage of Promethazine HCl and Codeine Phosphate Oral Solution should not be increased if cough fails to respond; an unresponsive cough should be reevaluated for possible underlying pathology.
2.2 Recommended
Dosage Adults 18 years of age and older: 5 mL every 4 to 6 hours as needed, not to exceed 6 doses (30 mL) in 24 hours.
2.3 Monitoring,
Maintenance, and Discontinuation of Therapy Prescribe Promethazine HCl and Codeine Phosphate Oral Solution for the shortest duration that is consistent with individual patient treatment goals. Monitor patients closely for respiratory depression, especially within the first 24-72 hours of initiating therapy. Reevaluate patients with unresponsive cough in 5 days or sooner for possible underlying pathology, such as foreign body or lower respiratory tract disease. If a patient requires a refill, reevaluate the cause of the cough and assess the need for continued treatment with Promethazine HCl and Codeine Phosphate Oral Solution, the relative incidence of adverse reactions, and the development of addiction, abuse, or misuse. Do not abruptly discontinue Promethazine HCl and Codeine Phosphate Oral Solution in a physically-dependent patient. When a patient who has been taking Promethazine HCl and Codeine Phosphate Oral Solution regularly and may be physically dependent no longer requires therapy with Promethazine HCl and Codeine Phosphate Oral Solution, taper the dose gradually, by 25% to 50% every 2 to 4 days, while monitoring carefully for signs and symptoms of withdrawal. If the patient develops these signs or symptoms, raise the dose to the previous level and taper more slowly, either by increasing the interval between decreases, decreasing the amount of change in dose, or both.
2.1 Important
Dosage and Administration Instructions Administer Promethazine HCl and Codeine Phosphate Oral Solution by the oral route only. Always use an accurate milliliter measuring device when administering Promethazine HCl and Codeine Phosphate Oral Solution to ensure that the dose is measured and administered accurately. A household teaspoon is not an accurate measuring device and could lead to overdosage. For prescriptions where a measuring device is not provided, a pharmacist can provide an appropriate measuring device and can provide instructions for measuring the correct dose. Do not overfill. Rinse the measuring device with water after each use. Advise patients not to increase the dose or dosing frequency of Promethazine HCl and Codeine Phosphate Oral Solution because serious adverse events such as respiratory depression may occur with overdosage. The dosage of Promethazine HCl and Codeine Phosphate Oral Solution should not be increased if cough fails to respond; an unresponsive cough should be reevaluated for possible underlying pathology.
2.2 Recommended
Dosage Adults 18 years of age and older: 5 mL every 4 to 6 hours as needed, not to exceed 6 doses (30 mL) in 24 hours.
2.3 Monitoring,
Maintenance, and Discontinuation of Therapy Prescribe Promethazine HCl and Codeine Phosphate Oral Solution for the shortest duration that is consistent with individual patient treatment goals. Monitor patients closely for respiratory depression, especially within the first 24-72 hours of initiating therapy. Reevaluate patients with unresponsive cough in 5 days or sooner for possible underlying pathology, such as foreign body or lower respiratory tract disease. If a patient requires a refill, reevaluate the cause of the cough and assess the need for continued treatment with Promethazine HCl and Codeine Phosphate Oral Solution, the relative incidence of adverse reactions, and the development of addiction, abuse, or misuse. Do not abruptly discontinue Promethazine HCl and Codeine Phosphate Oral Solution in a physically-dependent patient. When a patient who has been taking Promethazine HCl and Codeine Phosphate Oral Solution regularly and may be physically dependent no longer requires therapy with Promethazine HCl and Codeine Phosphate Oral Solution, taper the dose gradually, by 25% to 50% every 2 to 4 days, while monitoring carefully for signs and symptoms of withdrawal. If the patient develops these signs or symptoms, raise the dose to the previous level and taper more slowly, either by increasing the interval between decreases, decreasing the amount of change in dose, or both.
Text above is quoted in full from the FDA-approved drug label published by openFDA, effective December 18, 2025. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.
This page reproduces regulatory text for reference. It is not medical advice, and KenyRx is not a pharmacy or a prescriber. Talk to a doctor or pharmacist about whether a medicine is right for you.
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