Cost promethazine?

Do you mean the price of promethazine (like promethazine tablets/syrup) or the cost of promethazine-codeine cough syrup?

Because pricing varies a lot by form (tablet vs syrup vs injection), strength (mg), brand vs generic, and your country/insurance/pharmacy, tell me these and I’ll narrow it down:

1. Your country + ZIP/postal code (or at least country)
2. Form: tablets, syrup, suppository, or injection
3. Strength (e.g., 25 mg tablets, 6.25 mg/5 mL syrup, etc.)
4. Brand or generic (if you know)
5. Quantity (how many tablets or bottle size)

If you share just your country and the exact product strength/form, I can give a more accurate typical range.