Sep 22, 2022 Viewed: 72 Tag: anti-allergy  

Anti-allergy | Release or eliminate allergic symptoms and prevent allergic diseases


An allergy is an overreaction of the body's immune system to a harmless substance that comes into contact with the body. Usually, this overreaction damages the body itself and even the immune system, so a series of allergic reactions can occur. In general, allergies can be divided into internal and external triggers. Internal triggers refer to the fact that under the same conditions, some individuals are allergic and some are not, which is most relevant to the individual's constitution. External triggers are allergens that trigger allergic reactions when certain substances enter the body, such as drug allergies. Common allergic diseases include hives, atopic dermatitis, allergic asthma, etc. provided that allergies require symptomatic therapy.

Anti-allergic drugs are drugs that release or eliminate allergy symptoms and prevent allergic diseases.


Anti-allergic drugs are broadly divided into four categories, commonly used antihistamines.

1. Antihistamines, are especially effective in the therapy of allergic reactions to the skin and mucous membranes. The most commonly used clinically are chlorpheniramine and diphenhydramine. Second-generation antihistamines include Loratadine and Levocetirizine.

2. Allergic reaction mediator inhibitor, this drug exerts a beneficial influence on the therapy of allergic rhinitis and cough, and the most commonly used is ketotifen.

3. Calcium, as calcium can increase the density of capillaries, reduce permeability, and reduce exudation. Calcium gluconate is commonly used in clinical practice.

4. Immunosuppressive agents such as cyclophosphamide, methotrexate, cyclosporine, etc. This drug is not commonly used, mainly used for refractory allergies, autoimmunity, and allergies after organ transplantation.


Before Using

1. It is strictly forbidden to use it with macrolide antibiotics and imidazole antifungals at the same time, otherwise, it may lead to an increase in the blood concentration of second-generation antihistamines, ventricular arrhythmia, or even sudden death.

2. Patients with heart disease should avoid using it, otherwise it will increase the risk of induced arrhythmia.

2. Electrolyte disturbances, such as hypokalemia, hypocalcemia, and hypomagnesemia, should be avoided.

3. Electrolyte disturbances can affect depolarization of the ventricular myocardium, resulting in prolongation of the qt interval on the ECG.

4. Operators working at heights should be careful.

5. Strictly follow the doctor's orders to take medicines, do not add, reduce or withdraw medicines by yourself.

Medicine side effects

1. Easily sleepy After taking the allergy medicine, I feel more than sleepy and can't open my eyes. Taking these drugs can trigger drowsiness, a groggy brain all day long, dry mouth, nausea, and other symptoms. It will also make individuals' cardio slack, and the food stays in the stomach for a shorter time, which makes it easy to feel hungry. Therefore, patients taking antihistamines often experience significant weight gain after a period of time.

2. Skin lesions or upset stomach Anti-allergic drugs will also emerge the most common symptoms are more often than not skin lesions. Generally, the symptoms of skin lesions will be significantly relieved after stopping the drug for a period of time, and patients may even experience symptoms such as gastrointestinal discomfort, etc. Most patients will improve after a period of drug withdrawal.

3. Dry eyes

When taking anti-allergic drugs, provided that you have symptoms of dry eyes and dry mouth, you should drink plenty of boiled water (above 1000 ml). You can also use a humidifier to keep the room moist. During the medication, it is recommended to wear contact lenses as little as possible, not watch TV, and use mobile phones and computers for a long time. provided that the symptoms of dry eyes and mouth are particularly manifest, affecting daily life,

provided that a patient takes a certain anti-allergic drug for a long time, the efficacy of the drug will decrease, or the anti-allergic effect will not be achieved, which means that the drug has developed "resistance". Therefore, do not use the same antiallergic drug for a long time. Generally, after taking the drug for three months, you should alter to another antiallergic drug to continue the therapy.

Can allergy medicine be taken long-term?

Do not take anti-allergic drugs for a long time. provided that you take them for a long time, it will not only increase the body's drug resistance, resulting in a decrease in the therapeutic effect of the drug, but also various adverse reactions will occur, which will make the body uncomfortable. Common anti-allergic drugs include antihistamines and allergy mediators.

1. Antihistamines: first-generation antihistamines such as chlorpheniramine maleate tablets, second-generation antihistamines such as loratadine, cetirizine, and third-generation antihistamines such as Desloratadine, etc. Long-term use by young individuals may trigger fatigue, headache, drowsiness, dry mouth, nausea, etc. After taking the drug, try to avoid driving, operating machinery, and other behaviors. The elderly have a slower metabolism, and the plasma drug concentration is higher after taking it, which may trigger symptoms such as increased intraocular pressure, urinary retention, decreased blood pressure, and dizziness. In elderly patients with glaucoma, taking antihistamines may also lead to increased intraocular pressure. It is recommended that the intraocular pressure should be checked regularly during the taking;

2. Allergic mediators inhibiting the release of drugs: such as sodium cromoglycate, tranilast, etc., which are mainly used to prevent allergic rhinitis, etc., and the drug can be stopped after symptoms improve. Long-term use may trigger a tingling sensation on the skin, along with nausea, dry mouth, cough, difficulty urinating, and a rash. provided that any of the above symptoms occur, the patient is advised to seek medical attention immediately. For pregnant women, breastfeeding women, and patients with liver and kidney insufficiency, hyperthyroidism, or urinary system diseases, be sure to consult your doctor about the timing and dosage of antiallergic drugs before using them. When taking anti-allergic drugs for a long time, you should also check the liver and kidney function regularly to prevent the drug reaction and cause physical discomfort.

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