-5%
Promethazine hydrochloride and Phenylephrine hydrochloride syrup is indicated for the temporary relief of upper respiratory symptoms, including nasal congestion, associated with allergies or the common cold.
- Phenylephrine: A potent postsynaptic-α-receptor agonist, it causes vasoconstriction in the nasal mucosa, helping to relieve nasal congestion caused by allergies or head colds.
- Promethazine: An H1 receptor blocker, it provides antihistaminic effects along with sedative and antiemetic properties.