Promethazine with codeine is a prescription cough syrup that combines promethazine (an antihistamine that can also help with nausea and allergies) and codeine (a mild opioid cough suppressant).
Key points:
- Uses: mainly to relieve coughing due to colds or respiratory infections and to help with runny nose. It does not treat the underlying illness.
- How it’s taken: by mouth, usually every 4–6 hours as needed. Dosing is specific to the product and your doctor’s instructions—follow the label and your prescription. Do not exceed the recommended amount.
- Safety and risks:
- It is a controlled substance because of codeine (potential for abuse and serious side effects).
- Common: drowsiness, dizziness, dry mouth, blurred vision, nausea, constipation.
- Serious risks: slowed or difficulty breathing, especially in children or people who are sedated or drinking alcohol; risk of severe drowsiness or overdose if misused.
- Not recommended in children under about 6 years (and use in very young children is generally avoided). Exercise extra caution in older adults.
- Pregnancy and breastfeeding: generally avoided unless clearly advised by a clinician; codeine can pass into breast milk and affect a nursing baby.
- Interactions: alcohol and other sedatives can enhance drowsiness; avoid with other opioid-containing medicines or other medicines that slow breathing.
- Warnings: avoid using with certain medical conditions (eg, severe asthma, COPD, sleep apnea, glaucoma, or severe liver/kidney disease) unless a clinician says it’s safe.
- When to seek help: if you have trouble breathing, severe drowsiness, confusion, or an allergic reaction (rash, swelling, trouble breathing). If symptoms persist or worsen after a few days, contact a clinician.
If you have a specific question (e.g., “Is this safe with my other meds?”, “What’s the exact dose for my age/weight?”, or “Are there non-opioid alternatives?”), tell me your country, the exact product/formulation, and any medical conditions or meds you’re taking, and I’ll tailor the info.