Oral Antihistamines

Oral antihistamines help stop the symptoms caused by histamines by blocking the body’s receptors that trigger inflammation. Antihistamines are commonly used to treat allergic diseases and are available in various forms, and among these, the most popularly used ones are oral antihistamines, which include sprays, pills and capsules. You can buy oral antihistamines without a prescription from online stores.

Oral Antihistamine Brands

The most well known oral antihistamine is Benadryl; however, it can lead to sedation. While Benadryl can be used to treat various allergic conditions, its use is related to a host of side effects. Other older oral antihistamines include Chlor-Trimeton (chlorphenirimine), which can be purchased over the counter without a prescription. Less sedating and more recent oral antihistamine medications include Zyrtec and Claritin. They can be bought over the counter. These oral antihistamines cause less sedation, and are therefore preferred over their older counterparts.

Uses for Oral Antihistamines

Oral antihistamines and other types of antihistamines can be used to treat a host of allergy symptoms, namely hives, rash, itching, watery eyes, sneezing due to the common cold and allergies. Oral antihistamines are also used to treat other conditions such as insomnia, anxiety and motion sickness.

Taking Oral Antihistamines

Oral antihistamines can be consumed with milk or food if stomach upset occurs. However, timed-release capsules and tablets must be swallowed. Crushing or chewing long acting or sustained release tablets or capsules can increase possible side effects. Oral antihistamine suspensions must be shaken before intake.

Oral Antihistamine Side Effects

Oral antihistamines can cause several side effects namely headaches, drowsiness, loss of appetite, dry mouth, irritability, changes in vision and a dry nose and mouth. Once your body adjusts to oral antihistamines, the side effects will also subside. You can inform your doctor if the side effects get worse. If you develop an irregular heartbeat, ringing in the ears, breathing difficulties or difficulty in urination as a result of taking oral antihistamines, you will have to bring it to the notice of your doctor immediately. In addition to the previously mentioned side effects, oral antihistamines can also cause increased appetite and weight gain. This may be due to the similar chemical structure of some psychiatric drugs, which can also cause those symptoms, and antihistamine medications.

Oral Antihistamine Summary

It is better to tell your doctor about your past medical history before starting oral antihistamines. People who suffer from conditions such as heart disease, glaucoma, seizures, an overactive thyroid and lung problems must speak to their doctor before using medications such as oral antihistamines. They must also exercise caution while doing activities that require alertness such as driving or operation of machinery. Care must be taken before prescribing oral antihistamines to the elderly since they can be more sensitive to the effects of the drug. In addition, you must not give long acting oral antihistamines to children below 12 years of age without the approval of the doctor. This drug should also be used with care during pregnancy. The risks and benefits of taking oral antihistamines must be discussed with a doctor before use.