If it is close to the time for your next dose, skip the missed dose and go back to your normal time. Promethazine hydrochloride should not be used in pediatric patients less than 2 years old because of the potential for fatal.Along with its needed effects, promethazine may cause some unwanted effects. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Applies to promethazine: oral syrup, oral tabletOther dosage forms: 1. rectal suppository 2. solutionAlong with its needed effects, promethazine may cause some unwanted effects. For a full list, see the leaflet inside your medicine packet.You can report any suspected side effect to the.Your doctor may want to prescribe promethazine for morning sickness when other treatments haven't worked.Pregnant women have taken promethazine with no harmful effects to the mother or baby. Description and Brand Names; Before Using; Proper Use; Precautions; Side Effects; Products and services. O 0,2. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes.Mayo Clinic does not endorse companies or products. These include.Most people prefer to take a non-drowsy antihistamine as it's less likely to interfere with their everyday routine.You might choose to take a drowsy antihistamine, however, if you're having problems falling asleep, or if symptoms like itching or coughing are keeping you awake.There isn't enough information available to say whether one antihistamine is better than another for treating allergies.You may need to try a few different medicines to find what works best for you. "Product Information. There are many other medicines that can interact with promethazine. Carefully follow your doctor's instructions when giving this medicine to a child of any age. You may report them to the.The easiest way to lookup drug information, identify pills, check interactions and set up your own personal medication records. Keep out of direct or strong sunlight and follow.If you're over 65, you're more likely to experience side effects such as:Children are more likely to experience side effects such as feeling restless or excited.Call your doctor straight away if you have:In rare cases, it's possible to have a serious allergic reaction.You could be having a serious allergic reaction and may need immediate treatment in hospital.These aren't all the side effects of promethazine. Promethazine Hydrochloride (promethazine)."

Promethazine can cause severe breathing problems or death in a child in very young children. Key facts. It's your responsibility to decide if it's safe to drive. This is because it can slow or stop your heart and lungs.Mixing promethazine and codeine in large amounts slows down the central nervous system (brain and spinal cord), which can slow breathing and heart rate.It's even more dangerous when taken with alcohol or other drugs and has caused people to die.Promethazine will only help you sleep while you're taking it, so there are a number of things you can do instead to help yourself.If you have hay fever, it'll help if you don't spend too much time outside if the pollen count is high.The best way to prevent any sort of allergic reaction is to avoid the substance that you're allergic to, if you can.There are some practical steps you can follow to help.How is it different from other cough and cold remedies?What's the difference between promethazine and other antihistamines?Can I take more than one antihistamine at a time?Is there any food or drink I need to avoid?Is it dangerous to take with recreational drugs?Can lifestyle changes help me sleep better?Can lifestyle changes help with hayfever and other allergies?hospital accident and emergency (A&E) department,read the leaflet about the best use of medicines in pregnancy (BUMPS),information on the law on drugs and driving,short-term sleep problems (insomnia) - including when a cough or cold, or itching, is keeping you awake at night,allergies, including hay fever and hives (urticaria),feeling and being sick (vomiting) - due to morning sickness, travel sickness or vertigo,cough and cold symptoms, such as coughing and a runny nose.Avoid drinking alcohol while taking promethazine. Promethazine should not be given to a child younger than 2 years old. Do not take 2 doses at the same time or extra doses. Promethazine is an antihistamine medicine that relieves the symptoms of allergies.It's known as a drowsy (sedating) antihistamine. Although not all of these side effects may occur, if they do occur they may need medical attention.Stop taking this medicine and get emergency help immediately if any of the following effects occur:Check with your doctor immediately if any of the following side effects occur:Some side effects may occur that usually do not need medical attention. Promethazine can affect home pregnancy tests. It's classed as a drowsy (sedating) antihistamine.When you come into contact with something you're.Promethazine blocks the effects of histamine in your brain and this reduces symptoms.It enters the brain in large quantities and this can make you feel drowsy.Promethazine also blocks the effects of a chemical called dopamine, and this stops you feeling sick.Promethazine blocks the effects of a natural chemical called acetylcholine.This can help dry up a cough or runny nose, but can also cause side effects such as a dry mouth and dry nose.Although some people find them helpful, they're not usually recommended.This is because there's little evidence that they're any more effective than simple home remedies and they're not suitable for everyone.Promethazine will start to make you feel sleepy around 20 minutes after you take it and may work for up to 12 hours.If you're taking it for a cough or cold, allergies or nausea, your symptoms should start to improve within 20 minutes.