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Benadryl for Sleep

Benadryl for Sleep

This is a popular brand name medication which is classified as a P medicine in the United Kingdom, this means that it is available over the counter (OTC) without prior authorization from a doctor in the form of a prescription. Because this medication is sold freely over the counter, no questions asked, some people wrongly assume that it is safe to take the medication every night, or safe to take more than the recommended dosage.

What is Benadryl

Benadryl is manufactured by Johnson & Johnson and is commonly used to relieve the symptoms typical of allergies like itching, sneezing or a runny nose. In some countries, as well as being sold in a tablet / capsule, Benadryl cream / gel, which is designed as a topical analgesic (painkiller) used to stop itching, Benadryl syrup which is designed to ease and treat a bad cough, and Benacort nasal spray, which is designed to treat the symptoms associated with hay fever, are all available OTC.

What is in Benadryl in the UK?

When people mention Benadryl in the UK, they are generally referring to Benadryl allergy relief, which contains the sedating antihistamine called diphenhydramine hydrochloride (sometimes also referred to as diphenhydramine HCL). It is sold in many different forms across the world, and different products in the Benadryl range all contain different active ingredients such as the sedating antihistamine mentioned above, or a combination of diphenhydramine and phenylephrine, or, diphenhydramine and pseudoephedrine (PSE), which are both decongestants.

While other products in the range contain non-sedating antihistamines called Acrivastine or Cetirizine. Some of the products are intended for topical use only, and were designed to stop itching or to provide relief from insect bites. The topical form, which is found in some countries, contains diphenhydramine hydrochloride to relieve the symptoms of itching or allergies, along with zinc acetate to protect the skin. The gel / cream should not be ingested (swallowed), and in 2010, the company was instructed by the FDA to add warning on the product that states "for skin use only".

The wide range of products available, that all contain different active ingredients can be confusing, therefore it is important to research thoroughly before you buy Benadryl. The reason that this allergy relief tablet has almost become a synonym for diphenhydramine, is because this is the active ingredient in the allergy pill, the most popular product in the range!

What is Nitrazepam?

How Does Benadryl Allergy Relief Work?

As mentioned above, diphenhydramine is a sedating antihistamine which blocks the action of histamine in the body, and by doing so, naturally reduces alertness in its users and in turn promotes a feeling of calm, and relaxation. Unlike Nytol products, such as Nytol One a Night, these tablets are not actively advertised as over the counter (OTC) sleeping pills in the UK, but they have become a popular option for those struggling with minor insomnia symptoms due to how the medications side effects work to promote a drowsy feeling.

How Nitrazepam Tablets Work

How to Use Benadryl

When using Benadryl for sleep it is recommended that users carefully read and follow the information outlined in the patient leaflet that comes with the medicine. The tablets should be taken orally, and can be taken with or without food, however, Benadryl dosage instructions are based on various factors such as the users current health and age, and if they are currently taking other treatments. Because of its availability over the counter (OTC), it is important that users never increase the dose recommended for them without advice from a qualified health expert. Because of its availability over the counter, in any quantity, people also assume that it has no serious side effects.

Nitrazepam Side Effects

Benadryl Side Effects

Even if users follow the dosage instructions outlined in the patient information leaflet, they are still likely to experience some side effects. The main side effect is drowsiness, and this is why it is used as an OTC sleep aid. Other common side effects include constipation / an upset stomach, a dry mouth / throat and dizziness / blurred vision. The side effects will generally go away when the medication has worn off. This sleep aid stays active for around four to six hours in most users.

Benadryl Overdose

Excessive, or large doses of Benadryl can cause hallucinations, and the Benadryl Challenge is blamed on its availability over the counter. This online / internet challenge was first seen on a social media platform called TikTok in 2020, and revolves around the deliberate abuse of diphenhydramine. This internet challenge is blamed for the hospitalization of several of its participants and at least one death. The participants that were hospitalized admitted consuming "at least 14 diphenhydramine tablets". On 24th September 2020, the US Food and Drug Administration (FDA) issued a report warning parents of the possible death linked to the challenge and that taking too much can causes severe health problems and even be fatal.

Nitrazepam Dosage

Don't Buy Benadryl for Sleep!

it is available over the counter, and it causes drowsiness, but diphenhydramine was not designed to be used as a replacement for sleeping tablets. For this reason, we do not recommend that anyone buy Benadryl for sleep. Using this medication for anything other than it was intended for is dangerous, and can cause health complications. Instead, we recommend that anyone suffering from the symptoms of insomnia use sleeping pills that were designed to treat and cure bad bouts of insomnia in a short period of time.

The sleep aids available at our online pharmacy,, are all proven to induce sleep quickly and restore a natural healthy sleep pattern, and include zopiclone (Zimovane), zolpidem (Ambien), nitrazepam (Mogadon) and eszopiclone (Lunesta).

All of these medications are in stock now and available for immediate dispatch to your location in the UK or Europe. We accept all major forms of payment such as credit and debit card, bank transfer, and bitcoin payments (cryptocurrency). A doctor's prescription is not required and delivery to UK addresses generally takes just two to four days!

We are keen to hear your opinion about this widely available sleep aid, and would appreciate it if you left a comment below.




Quickly establishing herself as a content writer Sarah found herself drawn to the medical industry – specifically in the field of Cognitive Behavioural Therapy (CBT-I), and sleep aids for insomnia. Sarah brings a wealth of experience, expertise and enthusiasm and will no doubt keep our readers absorbed with her insightful and thoughtful blogs written especially for

Margaret Flynn – Mar 26, 2021
Hi Sarah, I have found your blog to be highly informative. The importance of using the correct medication to treat serious conditions such as Insomnia cannot be under estimated and your blog does an excellent job of highlighting this. Margaret Flynn
Ella Matthews – Apr 04, 2021
At last, someone that knows the difference between an antihistamine and a sleeping tablet. Thank you Sarah – Ella Matthews

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