Medications That Cause Fatigue. Some of the most common drugs that can make you tired are: Allergy medications (antihistamines), such as diphenhydramine, brompheniramine (Bromfed, Dimetapp), hydroxyzine (Vistaril, Atarax), and meclizine (Antivert). Some of these antihistamines are in sleeping pills, too.
Can allergy pills make you sleepy?
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).
Why does allergy medicine make me so tired?
Unrelated to the immune system, histamine is also produced in the brain, where it plays an important part in feeling awake. Antihistamines used to treat respiratory symptoms can get into the brain and interrupt this work, making you feel drowsy.
Can allergies cause extreme fatigue?
Yes, allergies can make you feel tired. Most people with a stuffy nose and head caused by allergies will have some trouble sleeping. But allergic reactions can also release chemicals that cause you to feel tired.
Does Zyrtec cause extreme fatigue?
A headache, sore throat, abdominal pain, fatigue, drowsiness, or coughing. Other side effects are uncommon. Generally does not cause drowsiness, although more likely to do so at higher dosages. Caution should be exercised before driving or operating machinery until full effects of Zyrtec are known.
What is the strongest antihistamine for sleep?
Common choices and the potential side effects include:
- Diphenhydramine (Benadryl, Aleve PM, others). Diphenhydramine is a sedating antihistamine. …
- Doxylamine succinate (Unisom SleepTabs). Doxylamine is also a sedating antihistamine. …
- Melatonin. The hormone melatonin helps control your natural sleep-wake cycle. …
Is it better to take Zyrtec at night or in the morning?
Cetirizine can be taken at any time of the day. In most people it is non-sedating, so they take it in the morning. However, a percentage of people do find it to be sedating so if it does make you drowsy it is best to take it in the evening. Cetirizine can be taken with or without food.
Why does allergy medicine make me feel weird?
Why do they all seem to have this side effect? Older antihistamines are sedating because the medication penetrates the blood-brain barrier, which means that the medication not only works in treating allergy but also affects the brain. The result is a feeling of lethargy.
Does allergy medicine make you gain weight?
Over-the-counter allergy meds block the action of histamine, a chemical your body makes that causes many of the symptoms of allergies. Blocking histamine with an antihistamine like diphenhydramine may lead to weight gain.
Does Claritin make you gain weight?
Newer drugs, including cetirizine (Zyrtec), fexofenadine (Allegra) and loratadine (Claritin), are less likely to cause weight gain, according to Long.
What are the 3 types of fatigue?
There are three types of fatigue: transient, cumulative, and circadian: Transient fatigue is acute fatigue brought on by extreme sleep restriction or extended hours awake within 1 or 2 days.
Why does my body ache and I feel tired all the time?
Chronic fatigue syndrome (CFS) is a condition that causes you to feel exhausted and weak, no matter how much rest or sleep you get. It often causes insomnia. Because your body doesn’t feel rested or replenished, CFS can also cause aches in the muscles and joints throughout your body.
Why am I so sleepy and tired all the time?
You may be too exhausted even to manage your daily affairs. In most cases, there’s a reason for the fatigue. It might be allergic rhinitis, anemia, depression, fibromyalgia, chronic kidney disease, liver disease, lung disease (COPD), or some other health condition.
Can Zyrtec keep you awake at night?
It can keep you up at night if you take it too close to bedtime. The antihistamine (Cetirizine) in Zyrtec D (Cetirizine / Pseudoephedrine) causes less drowsiness than other medications like Benadryl.
Does 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 take Claritin during the day and Zyrtec at night?
If your allergy is particularly bad then yes you can take them on the same day, as there are no known interactions. This is a therapeutic duplication and it is usually recommended to take only one antihistamine at any time, however if you have been prescribed to take both together then it is appropriate.