Dec 23, Promethazine (Phenergan) is used to treat allergy symptoms, nausea and vomiting after surgery and to Includes promethazine side effects, interactions and indications. Promethazine Hydrochloride (AHFS Monograph). Find patient medical information for Promethazine Oral on WebMD including its uses, side effects and safety, interactions, How to use Promethazine HCL. Promethazine hydrochloride also blocks the central histaminergic receptors, thereby depressing the reticular system causing sedative and hypnotic effects. Do not take more or less of it or promethaznie it more often than prescribed by your doctor. For people hudrochloride heart disease: If you have heart disease, taking this drug may more info it udes. Note: This drug is not recommended to treat uncomplicated vomiting in children. Brand names of combination products. This can cause promthazine body to process drugs more slowly. Examples of these drugs include:. Promethazine jses tablet is only available as a generic drug. When filling your prescription, be sure to call ahead to make sure your pharmacy carries it. What side effects can this medication cause? This is an emergency and may result in irreversible vision loss. It has not been confirmed that promethazine is safe and effective for use in children younger than 2 years. Measure liquid medicine with the dosing syringe provided, or with a special dose-measuring spoon or medicine cup. For people with sleep apnea: This drug may thicken the secretions in your breathing tubes. Explore Apps. If these effects are mild, they may go away within a few days or a couple of weeks. Take the missed dose as soon as you remember it. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses. Instead, the best way to dispose of your medication is through a medicine take-back program. Promethazine should not routinely be used to treat vomiting in children; it should only be used in specific cases when a doctor decides that it is needed.