Levocetirizine is a small, powerful drug that works as an H1 receptor antagonist to treat various allergies, including respiratory issues, dermatitis, and eczema.

Nortriptyline, a monoamine reuptake inhibitor, is a small molecule drug that exhibits its pharmacological action by targeting MATs.

Valsartan, a diminutive molecular compound, falls within the pharmacological group of angiotensin receptor blockers (ARBs).

Terbinafine, a small but powerful drug, works by blocking SQLE, a key enzyme in making ergosterol, which is essential for fungal cell membranes.

Nystatin, a minuscule molecule drug with a penchant for functioning as an ergosterol binder, engages in targeting fungal cells, blocking their growth and replication.

Carbamazepine, a minuscule molecule drug, exerts its therapeutic effect through the blocking of sodium channels in the human body.

Nitroglycerin, a minuscule molecule drug concocted by Merck, made its debut in the pharmaceutical market in 1983.

Atomoxetine, a diminutive molecule drug concocted by Eli Lilly, procured its inaugural medical approval in 2002.

Midodrine, a diminutive molecule of therapeutic nature, exhibits its therapeutic effect through its agonistic action upon the α-adrenergic receptor.

Indomethacin is a small NSAID that blocks the COX enzyme to reduce inflammation and pain.

Loperamide, an FDA-approved small molecule drug since December 1976, is a puzzling substance that binds to opioid receptors.

Approved by the FDA in March 1996, Fexofenadine is a puzzling small molecule drug that works as an H1 receptor antagonist.