side effects of antihistamine
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- Newer-generation antihistamines such as Allegra, Clarinex, and Zyrtec and have fewer side effects, so they may be a better choice for some people. Some of the main side effects of antihistamines include: 1  Dry mouth. 2  Drowsiness.3  Dizziness. 4  Nausea and vomiting. 5  Restlessness or moodiness (in some children).6  Trouble urinating or not being able to urinate. 7  Blurred vision. 8  Confusion.ome of the main side effects of antihistamines include: 1  Dry mouth. 2  Drowsiness. 3  Dizziness. 4  Nausea and vomiting. 5  Restlessness or moodiness (in some children). 6  Trouble urinating or not being able to urinate. 7  Blurred vision. 8  Confusion.
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- Common side effects of first-generation antihistamines include: 1  drowsiness. 2  impaired thinking. 3  dry mouth. 4  dizziness. 5  constipation.6  blurred vision. 7  an inability to fully empty the bladder (urinary retention).ommon side effects of first-generation antihistamines include: 1  drowsiness. 2  impaired thinking. 3  dry mouth. 4  dizziness. 5  constipation.
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- The first generation antihistamines may also cause troublesome anticholinergic effects such as heart palpitations, difficulty urinating, constipation, dry mouth, and nervousness. These side effects usually occur when the medication is taken at higher than recommended doses. The second generation of antihistamines currently on the market has few, if any, significant side effects at the recommended doses.
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Do I Need Antihistamines for Allergies? Sometimes you may also get an itchy rash on your skin, called hives. Antihistamines reduce or block histamines, so they stop allergy symptoms. Antihistamines work well to relieve symptoms of different types of allergies, including seasonal (hay fever), indoor, and food allergies, but they can't relieve every symptom. To treat nasal congestion, your doctor may recommend taking a decongestant.
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Antihistamines and How They're Used Histamine binds to the histamine receptor, which is present on various cells in the body, and results in allergic symptoms such as sneezing, itchy eyes, itchy nose, hives, or even anaphylaxis. Antihistamines are medications that block the receptor for histamine, thereby stopping the symptoms that histamine causes.
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Find a Local Pharmacy - Norwalk, CA Allergic reactions can happen with any drug and can range from itching and rash all the way up to a life-threatening anaphylactic reaction. Some drugs can’t help but trigger side effects because of their chemical structure. One example is the common allergy drug diphenhydramine (also known by the brand name Benadryl). Though it eases allergy symptoms, it also suppresses the activity of the body chemical acetylcholine, and that leads to drowsiness and a host of other side effects, including dry mouth.
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- Side-effects from antihistamines are more likely to occur in children and the elderly, and some of the most common ones associated with this type of medicine are listed below. 1  Drowsiness. 2  Headaches. 3  Blurred vision. 4  Constipation. 5  Dry mouth. 6  Dizziness. 7  Difficulty passing urine. 8  Confusion.
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- Common side effects of antihistamine sleeping pills. 1  Moderate to severe drowsiness the next day. 2  Dizziness and forgetfulness. 3  Clumsiness, feeling off balance. 4  Constipation and urinary retention. 5  Blurred vision. 6  Dry mouth and throat. 7  Nausea.
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- Uses. Diphenhydramine is an antihistamine used to relieve symptoms of allergy, hay fever, and the common cold. These symptoms include rash, itching, watery eyes, itchy eyes /nose/throat, cough, runny nose, and sneezing.owever, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects.
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- Common side effects may include: 1  daytime drowsiness, dizziness, weakness, feeling drugged or light-headed; 2  tired feeling, loss of coordination; 3  stuffy nose, dry mouth, nose or throat irritation; 4  nausea, constipation, diarrhea, upset stomach; or. 5  headache, muscle pain.mbien in Detail-Patient Information: Side Effects. Zolpidem may cause a severe allergic reaction. Stop taking zolpidem and get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
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Atorvastatin, Oral Tablet Atorvastatin oral tablet doesn’t cause drowsiness, but it can cause other side effects. More common side effects Some of the more common side effects that can occur with use of atorvastatin oral tablet include: cold symptoms such as runny nose, sneezing, and coughing; diarrhea; gas; heartburn; joint pain; forgetfulness; confusion; If these effects are mild, they may go away within a few days or a couple of weeks. If they’re more severe or don’t go away, talk to your doctor or pharmacist. Serious side effects. Call your doctor right away if you have serious side effects.
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Allergic Rhinitis Histamine is one of the chemicals released when antibodies overreact to allergens. It is the cause of many symptoms of allergic rhinitis. Antihistamines can help relieve: 1  Itching, sneezing, and runny nose (unless combined with a decongestant, antihistamines do not work well for relieving nasal congestion). 2  Other allergy symptoms unrelated to rhinitis, including hives and some rashes.
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- This can cause itching, sneezing, runny nose, and watery eyes. Antihistamines prevent histamines from attaching to your cells and causing symptoms. First-generation antihistamines also work in the part of the brain that controls nausea and vomiting. This is why they can help prevent motion sickness.
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Antihistamines What are antihistamines? Antihistamines are medicines that help stop allergy symptoms. These symptoms include: itchy eyes; sneezing; runny nose or congestion; skin rashes such as hives. They are normally taken by mouth. They come in tablets, capsules, chewable tablets, and liquids. Many people buy them over the counter (OTC) at a store. You can also get them through a prescription from your doctor. Antihistamines are generally considered safe for most people. This includes adults, children over the age of 2, and older people.
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Claritin Claritin (loratadine) is an antihistamine medication that is used to treat allergy symptoms. Claritin is available as a generic drug, called loratadine.Claritin blocks the action of histamine, a substance in the body that initiates allergic symptoms like itching, sneezing, runny nose, and allergic skin rashes.ess serious side effects may include: 1  headache; 2  nervousness; 3  feeling tired or drowsy; 4  stomach pain, diarrhea; 5  dry mouth, sore throat hoarseness; 6  eye redness, blurred vision; 7  nosebleed; or. 8  skin rash.
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- Antihistamine and Drowsiness. 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.
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- Diphenhydramine is an antihistamine used to relieve symptoms of allergy, hay fever, and the common cold. These symptoms include rash, itching, watery eyes, itchy eyes /nose/throat, cough, runny nose, and sneezing.
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Benadryl Side Effects Based on the limited information from prescription Benadryl products, the most common side effects of Benadryl are thought to include: 1  Sedation (a feeling of sleepiness and reduced anxiety) 2  Drowsiness. 3  Dizziness. Coordination problems.  Indigestion or 1  heartburn. Thickening of bronchial secretions (chest mucus).
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Sulfasalazine Side Effects Sulfasalazine Side Effects. Loss of appetite, nausea or vomiting, and headache are some of the most commonly reported sulfasalazine side effects. Less common side effects include insomnia, drowsiness, and urine discoloration. Side effects of sulfasalazine that are more serious and should be reported to a healthcare provider right away include hallucinations, worsening of ulcerative colitis symptoms, and easy bruising or unusual paleness.
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Resources Why these drugs may beinappropriate for older adults. Recommendations. Anticholinergic drugs-these drugs can cause side effects such as confusion, hallucinations, sleepiness, blurred vision, difficulty urinating, dry mouth and constipation in older adults. Antihistamines-drugs that are typically prescribed for allergies, hives and eczema: 1  Brompheniramine.
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Do I Need Antihistamines for Allergies? Sometimes you may also get an itchy rash on your skin, called hives. Antihistamines reduce or block histamines, so they stop allergy symptoms. Antihistamines work well to relieve symptoms of different types of allergies, including seasonal (hay fever), indoor, and food allergies, but they can't relieve every symptom.hey tend to cause more side effects, particularly drowsiness. Newer-generation antihistamines such as Allegra, Clarinex, and Zyrtec and have fewer side effects, so they may be a better choice for some people. Some of the main side effects of antihistamines include: 1  Dry mouth.
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Oxycodone withdrawal side effects More common side effects. Some of the more common side effects that can occur with albuterol include: fast or irregular heart rate; chest pain; shakiness; nervousness; headache; nausea ; vomiting ; dizziness; sore throat; runny nose; If these effects are mild, they may go away within a few days or a couple of weeks. If they’re more severe or don’t go away, talk to your doctor or pharmacist. Serious side effects. Call your doctor right away if you have serious side effects.
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Zyrtec Last reviewed on RxList 4/2/2015. Zyrtec (cetirizine hydrochloride) is an antihistamine that treats symptoms, such as itching, runny nose, watery eyes, and sneezing from hay fever (allergic rhinitis) and other allergies, such as allergies to molds and dust mites.It is available in generic form.Common side effects of Zyrtec include: drowsiness, fatigue, dizziness, dry mouth, sore throat, cough, nausea, constipation, or headache. In children, stomach pain and vomiting may occur.Zyrtec is available as regular tablets and chewable tablets (5 mg and 10 mg) and syrup (1 mg/mL).t is available in generic form. Common side effects of Zyrtec include: drowsiness, fatigue, dizziness, dry mouth, sore throat, cough, nausea, constipation, or headache. In children, stomach pain and vomiting may occur.
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Decongestants & Antihistamines for the Common Cold The main one for antihistamines is drowsiness, so it can be tough to take during the day. That's why they're often included in nighttime cold medicines. Other common side effects include dry mouth, dizziness, and headache. Decongestants may keep you awake and are usually taken during the day.
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Ketamine Hydrochloride Common side effects of ketamine hydrochloride include dream-like feeling, blurred vision, double vision, jerky muscle movements, dizziness, drowsiness, nausea, vomiting, loss of appetite, or sleep problems (insomnia). This medication is administered under a physician's supervision.
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- Antihistamines Antihistamines, which are taken by mouth or as a nasal spray, can relieve sneezing and itching in the nose and eyes. They also reduce runny nose and, to a lesser extent, nasal stuffiness. Some older antihistamines can cause side effects such as drowsiness and loss of alertness and coordination. NIAID • Runny nose and mucus production• Sneezing• Itchy nose, eyes, ears, and mouth• Stuffy nose• Red and watery eyes• Swelling around the eyes• Coughing• Wheezing• Chest tightness• Shortness of breathHowever, not all of these seasonal symptoms are due to pollen.