Antihistamine Articles

Antihistamine.com hosts a variety of articles that relate to antihistamines, allergies and congestion. Click on any of the articles below to learn more about antihistamines.

Antihistaminic Effects of Marijuana

There are many studies and publications which deal with the various effects marijuana has on the human body, but one aspect which is not commonly reported is its positive effect on patients suffering from allergies and hypersensitivities. Apart from reducing stress and anxiety, which are often psychological components of the heightened immune response behind allergic reactions, marijuana has a moderate to strong antihistaminic effect and, thus, can be combined well with over-the-counter medical products of that group.

Antihistamine Drugs

To an allergy sufferer, taking an antihistamine may be a daily requirement. An antihistamine can counter some of the most uncomfortable symptoms of allergies such as itching, watery eyes, coughing, sneezing, runny nose and rashes. Click on this link to read more about Antihistamine Drugs.


Antihistamine Side Effects

Antihistamines are considered relatively safe even for self-treatment, which is why they are readily available as over-the-counter medication. There are, however, antihistamine side effects that every patient must be aware of. Click on this link to read more about Antihistamine Side Effects.


Antihistamine Decongestant

Allergies are annoying, and can cause congestion. When allergies begin, it is time to reach for an antihistamine. Some allergies are seasonal, yet they can strike any time of the year. Click on this link to read more about Antihistamine Decongestant.


What Is The Best Antihistamine

The best antihistamines are divided into two kinds of drugs H-1 receptor antagonists and H-2. Receptor antagonists H-1 is primarily used to treat allergy symptoms by inhibiting the effects of histamines invading the body. H-2 is often used to treat related digestive and stomach disorders associated with allergies. Click here to read more about the Best Antihistamine.


Antihistamines For Hives

There are many causes of hives. Everything from sunlight, the food you eat, as well as underlying problems within the immune system can and do cause hives. The only treatment that relieves your symptoms is an antihistamine for hives. Click here to read more about antihistamines for hives.


Antihistamine for a Cat

The antihistamine for cats does not represent a new invention. In fact, these substances were used at first on humans, then being adapted to suit the needs animals have. The concept behind the creation of an antihistamine for cats makes it very effective as it works at the cause-level in order to combat the effects. Click here to learn more about an antihistamine for a cat.



Diphenhydramine comes in a variety of antihistamine forms and can be taken every four to six hours. It can be purchased as an antihistamine tablet, timed-release tablet, liquid-filled gel capsule, liquid, dissolving strips, and a powder.


About Diphenhydramine

Diphenhydramine was one of the first antihistamine medicines to be developed in 1943. Allergens affect the body by causing the release of histamine into the body. Histamine causes common symptoms of inflammation, runny noses, and watery eyes.


Natural Antihistamine Elements

Certain herbs have also been shown in laboratory trials to have natural antihistamine activity. However, real world testing on humans is not nearly as prevalent as those that have been conducted using the types of antihistamine products produced by the pharmaceutical companies in their chemical laboratories.


Natural Antihistamines

There are many natural antihistamine foods that already contain key natural supplements. Foods that are rich in histamine-combating ingredients can be used as a natural source to treat allergies. There are a couple of antihistamine supplements that are commonly found in foods.


Natural Antihistamine Supplements

Natural antihistamine supplements can help you control your allergies. There are many antihistamine supplements that you can take to help control your allergies. Some popular antihistamine supplements are listed below.


Natural Antihistamine Foods

Many vitamins found in naturally occurring foods contain antihistamine properties that can help with the mild symptoms of allergic reactions. First on the list of foods that can act as an antihistamine are foods that have a high content of vitamin A and vitamin C.


Natural Antihistamine Herbs

When histamine is released, the body reacts with an allergic reaction. Antihistamine herbs fight off histamine and stop the allergic reaction. Antihistamine can treat alignments including insect bites and hives.


Natural Antihistamine For Dogs

Natural antihistamine may prove to be the answer for dog owners looking to prevent future allergic reactions as well as alleviate the current symptoms their pets are experiencing. By strengthening dogs' immune systems, natural antihistamine enhance dogs' quality of life exponentially.


Animal Allergies

In addition to the use of antihistamine, there are a number of other ways to help limit the effect of an allergy attack including decongestants that are both applied topically and taken orally. As well, for those sufferers who have antihistamine-resistant allergies, a vaccine therapy may be an option.


Food Allergies

Food allergies happen as a result of food proteins. For some reason, the immune systems of certain individuals mistakenly identify certain food proteins as being harmful to their bodies. When these proteins are ingested, the bodies of allergy sufferers react as if under attack.


Pollen Allergies

An antihistamine battles against pollen allergies, making a tremendous difference for those who indulge in this type of drug. All in all, if there's a way to fight off your hay fever and scare off pollen allergies, an antihistamine is the answer.


Antihistamine Overdose

Antihistamine is considered by medical experts to be a very safe medicine. However, there have been times when too much antihistamine was consumed by a patient, causing a potential antihistamine overdose and danger if immediate medical treatment was not initiated.


Antihistamines for Dogs

Antihistamine can be effective for dog allergies just as it is for humans. For rapid relief of inflammation, nothing works better than the corticosteroid hormones such as hydrocortisone, dexamethasone and others.


Decongestant vs Antihistamine

A decongestant is used exclusively to reduce nasal congestion. It narrows the blood vessels found in the nasal membranes, reducing inflammation and swelling as it diminishes the mucous found in the nasal lining.


Antihistamines to Treat Allergy Symptoms

Many people who take an antihistamine have little to no idea of how it works. Understanding the function of an antihistamine can help allergy sufferers to understand their conditions, which in turn can lead to better decisions about medications and health.



Antihistamines were first used successfully to treat people in 1942. Bernard Halpern introduced the first product, antergan. It was revised in 1944, and then introduced in the United States in 1946 as diphenhydramine and tripellinamine.


Antihistamine Dosage

The standard dose of any antihistamine will always depend on the age and size of the person who is going to be taking this medication. For instance, Cetirizine (Zyrtec) recommends that children 6 years and older take 5-10 mg once daily, but that will depend on the severity of the symptoms.


Dog Antihistamine Dosage

In all cases, prior to administering an antihistamine to your dog you should: know the weight of your dog; ensure that the only active ingredient present is the antihistamine diphehahydramine and be sure of the amount present in each tablet or, in the case of liquid suspensions, the amount per fluid ounce, etc.


Common Antihistamine Side Effect

The most common side effect of an antihistamine is drowsiness. Antihistamines such as diphenhydramine and chlorpheniramine are more likely to cause drowsiness than any of the newer antihistamines available. This unwanted side effect of drowsiness occurs less frequently with the newer antihistamines such as citrizine, desloratadine, fexofenadine and loradtadine.


Antihistamines Bind at H1 Receptors

Antihistamines prevent escalation of allergic reactions. They work by blocking the H1 histamine G-protein receptor. G-protein receptors are cell-surface proteins that act like cellular switches that start a cascade of complex chemical reactions inside the cell.


Supplemental Health Insurance

Insurance companies offer a large number of supplemental health insurance policies to groups as well as to individuals. Although they do not constitute the primary source of disability or medical protection for a person, they can help with unplanned expenses and give additional peace of mind for the person insured.