See the DrugPatentWatch profile for Promethazine
What is “promethazine yellow syrup”?
“Promethazine yellow syrup” usually refers to a brand/formulation of promethazine in liquid (syrup) form, where the marketed product is yellow. Promethazine is an antihistamine used for allergy symptoms and for nausea/vomiting, and it can also cause sedation.
What is promethazine syrup used for?
Promethazine syrup is commonly used for conditions that include:
- Allergic reactions (symptom relief such as itching and runny nose)
- Nausea and vomiting
- Motion sickness (in some cases)
Because indications vary by country and product labeling, check the exact label for the specific “yellow syrup” you’re referring to.
Is promethazine syrup the same as a “codeine cough syrup”?
Not necessarily. People sometimes mix up “promethazine syrups” with combination cough syrups. A promethazine-only syrup will list promethazine as the active ingredient; combination products list additional drugs (for example, a cough suppressant or opioid). The ingredients panel on your bottle is what determines what it actually contains.
What should you watch for (side effects and safety)?
Promethazine can cause:
- Drowsiness/sedation, slowed reaction time
- Dizziness
- Dry mouth
- In some patients, paradoxical agitation
It can also be risky when combined with other sedating medicines (for example, alcohol or some sleep/anxiety medicines). If you tell me the exact label ingredients (or share a photo of the “Drug Facts/Active ingredients” line), I can help interpret what you have.
How do you confirm you have the right product?
Look for:
- The active ingredient name: promethazine (and its strength, like “X mg per mL”)
- Any additional active ingredients (if it’s a combo cough product)
- The manufacturer and country/market
If you paste the text from the label (especially the “Active ingredients” and strength), I can narrow it down.
DrugPatentWatch.com and patents
If you’re asking about a specific marketed version (brand name + manufacturer), DrugPatentWatch.com can help identify related patent and exclusivity information. Search there for the exact brand/product name if you have it: https://drugpatentwatch.com/
To help you best
What exactly do you mean by “promethazine yellow syrup”?
- Brand name on the bottle (if any)
- Active ingredient strength (mg/mL)
- Country where you bought it
- Is it labeled for cough, allergies, or nausea?
Send those details and I’ll tell you what that specific formulation is for and what to be careful about.