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Antihistamines, in general, have a low potential for addiction if you take them in the recommended doses for a short time.
However, if you take the older (first generation), sedating antihistamines in higher doses for a prolonged time, you run the risk of physical dependence and addiction, as well as more severe adverse side effects.
Histamine can cause itching, sneezing, runny nose, and watery eyes.
Antihistamines contained in these combinations are: The decongestants, such as phenylephrine, and pseudoephedrine, produce a narrowing of blood vessels.
This leads to clearing of nasal congestion, but it may also cause an increase in blood pressure in patients who have high blood pressure.
Some of these combinations are available only with your doctor's prescription.
They are available in pills or liquids, nasal sprays or gels, and eyedrops. This can cause itching, sneezing, runny nose, and watery eyes.
Two types of OTC antihistamines are available: first-generation and second-generation. First-generation antihistamines are sometimes used in OTC . Antihistamines prevent histamines from attaching to your cells and causing symptoms.
The few cases of antihistamine addiction reported in the medical literature are mainly on diphenhydramine (DPH).
These were some of the first antihistamines scientists developed. They also work in the part of the brain that controls . One of the most common side effects of first-generation antihistamines is feeling sleepy.
For this reason, they are sometimes used to help people who have trouble sleeping (insomnia).
Some common kinds you can buy over the counter include: Note: Some antihistamines are mixed with other medicines.
These could include pain relievers or decongestants.