Decongestants

Propylhexedrine (Benzedrex, Obesin) is a stimulant drug that is used medicinally as a nasal decongestant (for relief of congestion due to colds, allergies and allergic rhinitis) and recreationally for its psychostimulant effects.

Calcium hexamine thiocyanate is a pharmaceutical drug that has been used in nasal preparations.

Mephentermine is a cardiac stimulant.

Phenylpropanolamine (BAN and INN; PPA, β-hydroxyamphetamine), also known as the stereoisomers norephedrine and norpseudoephedrine, is a psychoactive drug of the phenethylamine and amphetamine chemical classes which is used as a stimulant, decongestant, and anorectic agent.

Cyclopentamine (trade names Clopane, Cyclonarol, Cyclosal, Cyklosan, Nazett, Sinos, among others) is a sympathomimetic alkylamine, classified as a vasoconstrictor.

Carbinoxamine/pseudoephedrine is an antihistamine and decongestant combination, marketed as Rondec, Ceron and Coldec.

Ephedrine is a medication used to prevent low blood pressure during spinal anesthesia.

Pseudoephedrine (/ˌsjuːdoʊ.ᵻˈfɛdrɪn/ or /ˌsjuːdoʊˈɛfᵻdriːn/; PSE) is a sympathomimetic drug of the phenethylamine and amphetamine chemical classes.

Norpropylhexedrine (cyclohexylaminopropane) is a stimulant of the cycloalkylamine class and is the cycloalkane analog of amphetamine.

Theraflu is a brand of over-the-counter cold and flu medicines from GlaxoSmithKline that contain different groupings of various cold and flu symptom medications.

Pseudoephedrine/loratadine (trade names Claritin-D, Clarinase, Clarinase Repetabs, Lorinase) is an orally administered combination drug used for the treatment of allergic rhinitis and the common cold.

Naphazoline (in the hydrochloride form) is the common name for 2-(1-naphthylmethyl)-2-imidazoline hydrochloride.

Cathine, also known as d-norpseudoephedrine and (+)-norpseudoephedrine, is a psychoactive drug of the phenethylamine and amphetamine chemical classes which acts as a stimulant.

Methylhexanamine (trade names Forthane, Geranamine) or methylhexamine, commonly known as 1,3-dimethylamylamine (1,3-DMAA) or simply dimethylamylamine (DMAA), is an indirect sympathomimetic drug invented and developed by Eli Lilly and Company and marketed as an inhaled nasal decongestant from 1944 until it was voluntarily withdrawn from the market in 1983.

Dexbrompheniramine/pseudoephedrine (trade name Drixoral) is a combination medication that contains the antihistamine dexbrompheniramine maleate and the decongestant pseudoephedrine sulfate.

Caramiphen is an anticholinergic drug used in the treatment of Parkinson's disease.