Quick Answer: Why Do Antihistamines Cause Weight Gain?

What are the side effects of long term use of antihistamines?

These common side effects include sedation, impaired motor function, dizziness, dry mouth and throat, blurred vision, urinary retention and constipation.

Antihistamines can worsen urinary retention and narrow angle glaucoma.

The antihistamines rarely cause liver injury..

Can Zyrtec cause depression?

The over-the-counter allergy medication cetirizine (Zyrtec and generic) has been linked to depression, as has another type of drug, montelukast (Singulair), which is often used to treat people with allergic asthma.

What drugs should not be taken with antihistamines?

Some products that may interact with this drug are: antihistamines applied to the skin (such as diphenhydramine cream, ointment, spray), blood pressure medications (especially guanethidine, methyldopa, beta blockers such as atenolol, or calcium channel blockers such as nifedipine).

Do Antihistamines help you lose weight?

The short answer seems to be yes. While occasionally taking a Benadryl for sleep probably won’t lead to significant weight gain, chronic use of antihistamines can interfere with weigh loss efforts.

Does Claritin make you depressed?

For loratadine, a second-generation antihistamine and a pro-drug of desloratadine, depression is mentioned in the Swiss labelling (12). In the USA product label for Claritin®, the original loratadine brand, depression is reported to have occurred in at least one patient (<2%) during the clinical trials (13).

Can Zyrtec help with anxiety?

Antihistamines are usually prescribed to treat allergic reactions. However, some are also used to treat anxiety on a short-term basis. Antihistamines work by having a calming effect on the brain, helping you to feel less anxious.

Can Zyrtec affect your mood?

According to a 2014 study, however, second-generation antihistamines — Zyrtec especially — can affect mood and cause daytime drowsiness more often than doctors initially believed.

Can you become dependent on antihistamines?

Your body doesn’t become addicted to antihistamines anymore than your car becomes addicted to having a windshield.

Do antihistamines affect digestion?

The H2-antihistamines block H2 histamine receptors that are found in the gastric acid producing parietal cells of the stomach. Therefore, these antihistamines will reduce the amount of gastric acid being secreted in the stomach.

Do antihistamines make you gain weight?

Antihistamines may also increase appetite, which can cause weight gain. Anecdotally, people using Xyzal (levocetirizine)—an antihistamine similar to Zyrtec (cetirizine)—they have noticed they have put on extra pounds, which is what a very small percentage of patients who used the drug during trials experienced.

Do antihistamines suppress appetite?

There are many postulations as to why this occurs. One reason, which may be the most reasonable, is that histamine is known to reduce the appetite, and antihistamines, therefore, counteract this effect.

Are antihistamines bad for your heart?

Antihistamines, which are commonly used to treat symptoms such as a runny nose or sneezing, are generally safe for patients with abnormal heart conditions. However, the FDA has warned that antihistamines taken in conjunction with some high blood pressure medications may cause a spike in blood pressure.

Can Zyrtec make anxiety worse?

Antihistamines are known to cause extreme drowsiness; however, in certain people, they can cause insomnia, excitability, anxiety, restlessness, and a rapid heart rate.

What happens when you stop taking antihistamines?

For example, some people experience symptoms with cetirizine if they take it for a while and then stop suddenly. The main withdrawal symptom is called pruritus— itching and burning sensations of the skin ranging from moderate to severe. Other antihistamine withdrawal symptoms include interruptions in sleep patterns.

What fruits are low in histamine?

What To EatFresh fruit: Apples, pomegranates, grapes, cherries, pears, plums, peaches (any fruit except citrus fruits, strawberries, avocado)Fresh vegetables: Arugula, artichokes, broccoli, carrots, onions, peppers, cucumbers, spaghetti squash, etc. (More items…•Aug 2, 2019

Which antihistamine is least likely to cause weight gain?

Newer drugs, including cetirizine (Zyrtec), fexofenadine (Allegra) and loratadine (Claritin), are less likely to cause weight gain, according to Long.

Is it OK to take antihistamines every day?

Depending on your symptoms, you can take antihistamines: Every day, to help keep daily symptoms under control. Only when you have symptoms. Before being exposed to things that often cause your allergy symptoms, such as a pet or certain plants.

What is the best natural antihistamine?

The 4 Best Natural AntihistaminesAntihistamines.Stinging nettle.Quercetin.Bromelain.Butterbur.Takeaway.

Is it bad to take antihistamines to sleep?

While some over-the-counter antihistamines can cause drowsiness, routinely using them to treat insomnia isn’t recommended. Antihistamines, mainly used to treat symptoms of hay fever or other allergies, can induce drowsiness by working against a chemical produced by the central nervous system (histamine).

What antihistamines make you gain weight?

Antihistamines that can cause weight gain include:Diphenhydramine (Benadryl and others)Cetirizine (Zyrtec)Levocetirizine (Xyzal)Fexofenadine (Allegra)Hydroxyzine (Atarax, Vistaril)Chlorpheniramine maleate (Chlor-Trimeton)

Can antihistamines cause depression?

Can antihistamines cause depression? One study of 92 people with chronic itchiness saw that patients who took the antihistamines cetirizine and hydroxyzine reported an increase in depression and anxiety.