Antihistamines
Antihistamines are a type of medicine often used to treat a number of allergic health conditions.
Antihistamines work by stopping histamine affecting your body's cells in the usual way.
Most people are able to take antihistamines. However, antihistamines are not recommended in certain circumstances.
The effect of antihistamines can sometimes be altered when they are combined with other substances.
Like all medicines, antihistamines can have side effects. Generally, these are more significant with first-generation antihistamines.