Dextromethorphan: Acts on cough center in medulla; derivative of levorphanol. Phenergan is a phenothiazine antihistamine that functions in the physical body by protecting against the launch of histamine, known for inducing sneezing, itchy eyes, watery eyes, hives, skin breakout and other ones. Promethazine can make you delirious at a high dose and cause unpleasant side-effects. Onset: 20 min. It blocks the effects of phenergan dxm the naturally occurring chemical histamine in your body. If the drug is not a Do Not Use product, information on adverse effects, drug interactions and how to use the medication are included. These medications are not usually taken together. When used for surgery, promethazine is usually taken the night before the surgery. Identify these significant promethazine-dm oral (Chemergan W/Dextromethorphan Oral, Dectuss Dm Oral, Kalmtuss Dm Oral, Phenergan DM Oral, Phenergan W/Dextromethorphan Oral) drug interactions with the RxList drug interaction checker tool Dextromethorphan; promethazine products are contraindicated for use in children less than 2 years of age, infants, and neonates due to the risk for fatal promethazine-associated respiratory depression. Promethazine is a phenothiazine that works like an antihistamine. Frequently Asked Questions. So I bought a syrup that’s 160ml and has 15mg dxm/20ml, 20mg promethazine/20ml and 1000mg paracetamol/20ml. Phenergan can be offered to kids if recommended so by the doctor, but just those older compared to 2 DXM is a widely available over-the-counter cough suppressant. The signals that trigger the cough reflex are affected by dextromethorphan. DXM and Promethazine. It blocks the effects of the naturally occurring chemical histamine in your body Get an overview of DEXTROMETHORPHAN HYDROBROMIDE AND PROMETHAZINE HYDROCHLORIDE (syrup), including warnings and precautions, directions, and the names of other drugs and products that include the same medication WARNINGS. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except. It also has a drying effect Dextromethorphan is a cough suppressant. It also has a drying effect. Adult Dosing. Promethazine is an antihistamine. nsfw. These OTC cough medicines are safe for stopping coughs during a cold if you take them as directed. Measure liquid doses carefully. Dextromethorphan and phenergan. Drug and Dietary Supplement Profiles. Then hang the bag so the insoluble DXM collets in a corner.After a few hours/overnight use a pair of pliers or your finger to pinch above the collected DXM to prevent it.This medication treats allergic reactions and acts as an additive for the treatment of anaphylaxis, a life-threatening severe allergic reaction Easy to read FDA package insert, drug facts, dosage and administration, and adverse effects for Promethazine Dm (Dextromethorphan / Promethazine). It blocks the effects of the naturally occurring chemical histamine in your body Promethazine HCl and Dextromethorphan Hydrobromide Syrup is a combination of an antihistamine and a cough suppressant used to treat cough, itching, runny nose, sneezing, and itchy or watery eyes caused by colds or allergies.Promethazine HCl and dextromethorphan hydrobromide syrup is available in generic form. Who is this drug for? share.