As nouns the difference between cardiac and terfenadine

is that cardiac is a person with heart disease while terfenadine is an antihistamine drug formerly used to treat allergic conditions, superseded by fexofenadine in the 1990s due to the risk of cardiac arrhythmia.

As an adjective cardiac

is pertaining to the heart.

As nouns the difference between arrhythmia and terfenadine

is that arrhythmia is an irregular heartbeat while terfenadine is an antihistamine drug formerly used to treat allergic conditions, superseded by fexofenadine in the 1990s due to the risk of cardiac arrhythmia.

As nouns the difference between dimethyl and lutidine

is that dimethyl is (in combination) Two methyl groups in a molecule while lutidine is any of several dimethyl derivatives of pyridine, but especially 2,6-dimethyl pyridine that occurs in coal tar.

As an adjective derivative

is .

As a noun lutidine is

(organic compound) any of several dimethyl derivatives of pyridine, but especially 2,6-dimethyl pyridine that occurs in coal tar.

In organic compound terms the difference between pyridine and lutidine

is that pyridine is any of a class of aromatic heterocyclic compounds containing a ring of five carbon atoms and an nitrogen atom; especially the simplest one, C₅H₅N while lutidine is any of several dimethyl derivatives of pyridine, but especially 2,6-dimethyl pyridine that occurs in coal tar.

As nouns the difference between antihistamine and loratadine

is that antihistamine is a drug or substance that counteracts the effects of a histamine commonly used to alleviate the symptoms of hay fever and other allergies while loratadine is an antihistamine drug used to treat allergies.

As nouns the difference between drug and loratadine

is that drug is (pharmacology) a substance used to treat an illness, relieve a symptom, or modify a chemical process in the body for a specific purpose or drug can be (obsolete) a drudge while loratadine is an antihistamine drug used to treat allergies.

As a verb drug

is to administer intoxicating drugs to, generally without the recipient's knowledge or consent or drug can be (drag).

As an adjective clinoid is

(anatomy) like a bed.

As nouns the difference between antihistamine and fexofenadine

is that antihistamine is a drug or substance that counteracts the effects of a histamine. Commonly used to alleviate the symptoms of hay fever and other allergies while fexofenadine is an antihistamine drug used in the treatment of hay fever and similar allergies.

As nouns the difference between drug and fexofenadine

is that drug is (pharmacology) a substance used to treat an illness, relieve a symptom, or modify a chemical process in the body for a specific purpose or drug can be (obsolete) a drudge while fexofenadine is an antihistamine drug used in the treatment of hay fever and similar allergies.

As a verb drug

is to administer intoxicating drugs to, generally without the recipient's knowledge or consent or drug can be (drag).