It is a good idea to treat just the symptoms that you have.If you have only a runny nose, don’t choose a medicine that also treats headache and .Others are available without a prescription; however, your doctor may have special instructions on the proper dose of the medicine for your medical condition.
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.Diphenhydramine is the most common antihistamine used non-prescription sleep aids. Certain antihistamines indicated only for allergies, such as chlorpheniramine (Chlor-Trimeton), diphenhydramine (Benadryl), or hydroxyzine (Atarax or Vistaril) may also be used as mild sleep-inducers.Some drugs contain diphenhydramine alone (such as Nytol, Sleep-Eez, and Sominex), while others contain combinations of diphenhydramine with pain relievers (such as Anacin P. Unfortunately, most of these drugs leave patients feeling drowsy the next day and may not be very effective in providing restful sleep.This is what gives them a potential for abuse and addiction.
The few cases of antihistamine addiction reported in the medical literature are mainly on diphenhydramine (DPH).Some people deliberately choose to abuse antihistamines, often as a substitute when they can't get their drug of choice.Others may start out using an antihistamine as a sleep aid but find they need higher and higher doses to fall asleep.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.In November 2000, the Food and Drug Administration (FDA) issued a public health warning regarding phenylpropanolamine (PPA) due to the risk of hemorrhagic stroke.