Promethazine hydrochloride is an allergy medication which can reduce the symptoms of allergic reactions such as hay fever, rashes and insect bites or stings. It can also be used to both treat and prevent you feeling nauseous or being sick, such as post-surgery or in the case of severe travel or motion sickness, for example.
Promethazine hydrochloride also has mild sedative properties, which means it can be used as a short-term treatment in adults who suffer from difficulty sleeping or insomnia. In children ages 5 and up, it can also be used as a sedative.
The active ingredient in Phenergan is promethazine hydrochloride, which is an antihistamine medication. This ingredient belongs to a group of medicines known as phenothiazines.
These medicines work by blocking the effects of histamine, which is the substance your body makes during an allergic reaction. In blocking this substance, no signals are sent to your brain to begin fighting it off, which is where the symptoms of allergy come from. This is why antihistamine medicine works as a preventative measure as well as a curative one, as it can prevent the signal before you need it to, or help stop it while you’re suffering from the effects of an allergic reaction.
As Phenergan promethazine hydrochloride can help treat and alleviate the symptoms of a number of conditions, the suggested use and dosage for this product can vary.
For the treatment of allergies and allergy symptoms, the following does should be given to each age group.• Children aged 5-10 — One 25mg tablet taken at night. Do not exceed this dosage in a single day.
For the prevention and treatment of nausea and sickness, the following doses are recommended:• Children over 10, adults, & the elderly — One 25mg tablet taken the night before the journey. If necessary, take a second tablet 6-8 hours after the first dose.
When used as a short term child sedative or adult insomnia treatment, use these treatment guidelines:• Children aged 5-10 — a single 25mg tablet taken at night.
If your child is under the age of 5, it is recommended that you do not use Promethazine hydrochloride, and instead seek alternative treatments. Please note that you should not use this treatment for longer than 7 days. If your symptoms worsen or do not improve after this point, cease treatment and contact your doctor or pharmacist.
Phenergan Promethazine hydrochloride tablets can be purchased without the need of a prescription, but, in some circumstances, you may need to discuss with your doctor or pharmacist first so they can provide advice on whether this product is right for you.
For example, you should inform your pharmacist if you suffer from any of the following issues:• Difficulty breathing such as wheezing, asthma, or bronchitis
Please ensure to inform your pharmacist of other medications you are taking, whether they’re over the counter or prescription-based, before you start taking promethazine hydrochloride. This is because this substance can interfere with how some medications work.
For example, your doctor or pharmacist must know if you are taking medications such as anticholinergic agents, medications for depression, other sleep aids such as diazepam, and medications such as aspirin taken for arthritis or joint pain. This is because these medications can exacerbate the side effects of Phenergan, or Phenergan can mask the side effects of these medications.
As with all medications, there are some side effects which may present themselves through taking this product. Immediately stop treatment if you suffer from any of the following side effects:• Any sign of an allergic reaction such as rash, difficulty breathing, or swelling of the face, lips or tongue.
For the following side effects, if they last longer than a few days or become particularly severe, contact your pharmacist or doctor for support.• Dry mouth, blurred vision, or difficulty passing water.
If you experience other side effects not listed here that you believe are linked to this product, talk to your doctor or pharmacist, and consider reported the side effects in question through the Government’s Yellow Card Scheme.
Please ensure that you read the ingredients of Phenergan tablets before beginning treatment to avoid the risk of an allergic reaction to some of the ingredients. For example, if you are lactose intolerant, you may be better served with alternative treatments, as this product contains lactose, while a corn allergy will also mean you should find other treatments due to the inclusion of maize as an ingredient.
If you are currently suffering from depression and are either currently taking treatments known as monoamine oxidase inhibitors (MAOIs), or have used this treatment within the last 14 days, please do not take this product. Please consult your doctor beforehand if you are unsure about which treatment you are taking.
If you are suffering from especially severe dizziness, drowsiness or headaches, do not take this product and instead consider contacting your doctor in the first instance.
If you are in the early to mid-stages of pregnancy, talk to your pharmacist before beginning treatment. However, if you are due to give birth within the next two weeks, you should not take Phenergan tablets. You should also avoid using Phenergan if you are currently breastfeeding or you plan to do so. This is because small amounts of the active ingredient, promethazine hydrochloride can pass into the mother’s milk, which can be harmful to the baby.
Do not drink alcohol while using Phenergan tablets. The alcohol can affect the way the medicine works in your system, which may make the treatment less effective.
Lastly, promethazine hydrochloride may interfere with the results of certain tests, such as skin allergy tests, or pregnancy tests. If you are due to take any tests such as these in the near future, ensure this product is not taken for at least three days prior to the tests.
As with other medications, please store Phenergan tablets out of sight and reach of children. Please also ensure that you remain aware of the product’s expiry date. Keep these tablets in their original packaging for this reason.
You should also store these products below 30 Celsius and protected from sunlight.
Ask your pharmacist how to dispose of medicine you no longer need. Disposing of medication properly, rather than through household waste, can help to protect the environment.
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