What is the difference between pseudoephedrine and antihistamine

many substances can be antihistaminics and pseudoephidrine is one of them.

pseudoephedrine is a brand name of a drug whereas antihistamine is a generic name of a drug

pseu·do·e·phed·rine
n.
An isomer of ephedrine used primarily as a decongestant.

Main Entry: pseu·do·ephed·rine
Pronunciation: -i-'fed-r&n, Brit also -'ef-&-dr&n
Function: noun
: a crystalline alkaloid C10H15NO that is isomeric with ephedrine & is administered in the form of its hydrochloride or sulfate especially to relieve nasal congestion

pseudoephedrine

n : poisonous crystalline alkaloid occurring with ephedrine & isomorphic with it




an·ti·his·ta·mine ( P ) Pronunciation Key (nt-hst-mn, -mn, nt-)
n.
A drug used to counteract the physiological effects of histamine production in allergic reactions & colds.

Pseudoephedrine is as the name suggests a copy of what is produced within the body as a stimulant and is like speed the drug and is not really good for you at all. Antihistamine is a drug that has been produced to control the effects of hayfever and has positive effects.

pseudo (imitation) ephedrine = mild amphetimine (upper non drowsy)
anti (against) histimine a histimine blocker histimine is the process when your body encounters an allergen like bee sting allergy or pollen hayfever etc
benedryl is anti histimine it causes drowsiness

pseudoephedrine is an isomer of ephedrine used primarily as a decongestant, while antihistamine is a drug used to counteract the physiological effects of histamine production in allergic reactions and colds.

Pseudoephedrine is a decongestant. Thins nasal secretions, to alleviate congestion.

Antihistamines block histamine (allergic) reaction.

antihistamine is a general category of drug whereas pseudephidrine is one particular drug