Antihistamine Side Effects

Antihistamine Side Effects

          Antihistamines are drugs that are prescribed to tackle allergies and hay fever. The drugs work by blocking the receptors for histamines, which are chemical compounds released by the body when foreign particles enter the body. Although antihistamines are popular medications to treat allergies, there are some side effects that all patients should be aware.

          Also, patients with certain health conditions should not take antihistamines as they could lead to some other complication.

          Some of the side effects of antihistamines are as follows:

  • Headaches
  • Drowsiness
  • Dizziness
  • Suffering from a dry mouth
  • Blurry vision
  • Constipation
  • Confusion

          It has been seen that side effects are especially frequent in small children and older adults. Usually antihistamine side effects are mild and once the body becomes used to the medication, the side effects seem to disappear. However, there can be serious side effects like difficulty in breathing, irregular heart beats, difficulty in passing urine, sweating, vomiting, fever and chills, becoming sensitive to light, ringing sound in the ears and fainting. If any of these side effects are seen, the patient should be immediately taken the emergency room.

          People who suffer from thyroid problems, glaucoma, high blood pressure, seizures, liver disease, lung problems, heart disease and enlarged prostate should not take antihistamines. Also, those taking sedatives, antidepressants, tranquilizers or sleeping pills should also not take antihistamines. These people could suffer from an adverse reaction due to combination of medications. Even pregnant women and breastfeeding mothers should refrain from taking antihistamines without checking with their doctors.

          Since antihistamines cause drowsiness, you should not take the drug and drive or do any work requires you to be alert. Antihistamine Side Effects