What’s the difference between an antihistamine and a decongestant?

ANTIHISTAMINES AND THE BRAIN

I have high blood pressure. Why should I avoid decongestants? What can I take instead?

Antihistamine vs. Decongestant

Reasons Why Decongestants Are Dangerous

Histamine and Antihistamines, Pharmacology, Animation

Pseudoephedrine and Allergy Season? What you need to know.

Can you take loratadine with Sudafed

can you take loratadine and dayquil together

Antihistamines - Mechanism of Action

Which is the best allergy medication for you? Zyrtec vs. Allegra vs. Claritin

Stuffy or runny nose? Don't bother using popular nasal decongestant: US FDA

Can you take loratadine and Mucinex together

Over the Counter Medication For Sinus Infections / Best Medicine for Sinus Infection / Houston ENT

Is Sudafed An Antihistamine?

Popular nasal decongestant doesn't actually relieve congestion, FDA advisers say

Addicts Using This 'Safe' Medication To Get High

Common drug in your medicine cabinet is 'new high'

Warning About Over-The-Counter Nasal Sprays

Expectorants, Mucolytics, Decongestants & Antihistamines - Pharmacology - Respiratory |@LevelUpRN