Knowing About Antihistamine Medicines

Antihistamine Medicines

Antihistamines are certain types of medicines which is mainly used for curing hay fever, insect bites, conjunctivitis and other related health issues. This medicine is also prescribed for preventing motion sickness and for treating insomnia. There are certain antihistamine tablets which cannot be purchased without a prescription. You must know the effects of loratadine long term use when your doctor suggests it for particular health problems.

The following are some of the things you must know about antihistamine drugs:

Types
They are classified into two main categories namely older antihistamine and newer antihistamine. The older antihistamine drugs cause drowsiness. Some of the old antihistamine drugs include hydroxyzine, chlorphenamine, and promethazine. The other category which is the newer antihistamine drugs are less drowsy, and this includes medicines such as cetirizine, fexofenadine, etc. All these drugs come in various forms such as tablets, capsules, syrups, creams, eye drops, lotions, sprays, etc.

It is not possible to tell which type of antihistamine suit an individual as the effects of the drug varies from person to person. You can go for the newer antihistamine drugs which are less drowsy, and you may not feel sleepy when you take the tablet. You can go for older type antihistamine drug when your health problem affects your sleep.

How Does It Work?
When your body encounters anything harmful, the chemical called histamine is released so that the blood vessels get expanded. This would help to protect your body during infections. There are situations when this histamine released for reasons that are harmless say when you come in contact with pollen. An antihistamine drug would help to prevent the working of the chemical histamine. Thus you can avoid certain types of allergies or reduce the symptoms caused due to certain other allergies.
It is entirely safe for everyone to consume the antihistamine drug. You have to consult your doctor when you consume the drug along with other medicines. This may cause certain side effects.

The above are some of the things you must know about antihistamine drugs.