If you stop them “cold turkey” you are no more sensitive to allergens than when you began taking the antihistamine in the first place.
It did not help much only reduced my concentration.
Thanks, Trippy Dear Trippy, Highs from a range of sources (natural or induced) can be exciting and compelling.
But, there are definitely both short-term and long-term effects of using diphenhydramine, the active ingredient in many antihistamines, (like Benadryl) that are worth noting.
Diphenhydramine and other antihistamines affect your central nervous system, which is why the list of possible effects is so long and broad — people may react to the same stimulus in various different ways.
Some possible short-term effects include: As you can see, there’s a range of reported effects of the drug and they could be interpreted as either positive or negative.