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.
Why do antihistamines cause weight gain?
Histamine also acts as a neurotransmitter in our brains playing a key role in wakefulness and preventing sleep, which is why Benadryl (an anti-histamine) makes you sleepy. This effect may actually one of the reasons why anti-histamines can result in weight gain.
Which antihistamines do not cause weight gain?
Newer drugs, including cetirizine (Zyrtec), fexofenadine (Allegra) and loratadine (Claritin), are less likely to cause weight gain, according to Long.
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.
Do antihistamines affect metabolism?
The body also can’t burn calories effectively when the histamine receptor is blocked, lowering metabolism. These biological changes result in increased appetite, overeating, slower fat breakdown and weight gain. Antihistamines can also make you feel tired and unmotivated to exercise.
Which antihistamines cause weight gain?
H1 receptor antihistamines such as cetirizine, fexofenadine, and desloratadine are among the most commonly prescribed medications for the treatment of allergies and have been shown to stimulate appetite and weight gain as side effects of treatment (6).
Is it OK to take antihistamines every day?
Lin says antihistamines alone are “not bad for the heart in otherwise healthy people.” “The later generation non-sedating antihistamines, such as loratadine, fexofenadine, and cetirizine are safe to take daily,” says John Faraci, MD, assistant professor at Loma Linda University School of Medicine.
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.
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.
How can I lower my histamine levels?
Some foods low in histamine include:
- fresh meat and freshly caught fish.
- non-citrus fruits.
- gluten-free grains, such as quinoa and rice.
- dairy substitutes, such as coconut milk and almond milk.
- fresh vegetables except tomatoes, avocados, spinach, and eggplant.
- cooking oils, such as olive oil.
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 tired?
Like all medicines, antihistamines can cause side effects. Side effects of antihistamines that make you drowsy can include: sleepiness (drowsiness) and reduced co-ordination, reaction speed and judgement – do not drive or use machinery after taking these antihistamines. dry mouth.
Can nasal spray make you gain weight?
Nasal corticosteroids such as triamcinolone nasal spray (Nasacort Allergy 24HR Nasal Spray) or fluticasone nasal spray (Flonase Allergy Relief) won’t cause weight gain and may be better options for hay fever or other allergy symptoms, especially if weight gain is a concern.
Why do antihistamines make you tired?
The first-generation antihistamines can make you drowsy because they cross the blood-brain barrier, an intricate system of cells that regulates what substances pass into the brain. In fact, these older antihistamines are often marketed as sleep aids.
What is a natural antihistamine?
A common herb in natural medicine, stinging nettle, may also be a natural antihistamine. In a 2000 study, 58 percent of participants found their symptoms relieved with the use of freeze-dried nettles, and 69 participants rated it better than the placebo. Stinging nettle can be found online and at health food stores.
Is it safe to take antihistamines long term?
Commonly used first-generation antihistamines have strong anticholinergic properties, and recently published data from the adult population have suggested that long-term use of these drugs may increase the risk for developing dementia.