Prothipendyl (brand names Dominal, Timovan, Tolnate), also known as azaphenothiazine or phrenotropin, is an
anxiolytic,
antiemetic, and
antihistamine
Antihistamines are drugs which treat allergic rhinitis, common cold, influenza, and other allergies. Typically, people take antihistamines as an inexpensive, generic (not patented) drug that can be bought without a prescription and provides re ...
of the
azaphenothiazine group which is marketed in
Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...
and is used to treat
anxiety
Anxiety is an emotion which is characterized by an unpleasant state of inner turmoil and includes feelings of dread over anticipated events. Anxiety is different than fear in that the former is defined as the anticipation of a future threat wh ...
and
agitation in
psychotic syndromes.
/ref> It differs from promazine
Promazine (brand name Sparine among others), is used as a short-term add-on treatment for psychomotor agitation. Its approved uses in people is limited, but is used as a tranquilizer in veterinary medicine. It has weak antipsychotic effects but ...
only by the replacement of one carbon
Carbon () is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalent
In chemistry, the valence (US spelling) or valency (British spelling) of an element is the measure of its combining capacity with o ...
atom with a nitrogen
Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at se ...
atom in the tricyclic ring system. Prothipendyl is said to not possess antipsychotic
Antipsychotics, also known as neuroleptics, are a class of Psychiatric medication, psychotropic medication primarily used to manage psychosis (including delusions, hallucinations, paranoia or disordered thought), principally in schizophrenia but ...
effects, and in accordance, appears to be a weaker dopamine receptor antagonist
An antagonist is a character in a story who is presented as the chief foe of the protagonist.
Etymology
The English word antagonist comes from the Greek ἀνταγωνιστής – ''antagonistēs'', "opponent, competitor, villain, enemy, riv ...
than other phenothiazines.
Synthesis
See also: Pipazetate
Pipazetate () (brand names Dipect, Lenopect, Selvigon, Theratuss, Toraxan), or pipazethate (), is a pyridobenzthiazine cough suppressant, closely related to the phenothiazine class. It binds to the sigma-1 receptor with an IC50 value of 190 nM. ...
.
1-Azaphenothiazine 61-96-1(1)
3-Dimethylaminopropyl chloride 09-54-6(2)
Sodium hydride
Sodium hydride is the chemical compound with the empirical formula Na H. This alkali metal hydride is primarily used as a strong yet combustible base in organic synthesis. NaH is a saline (salt-like) hydride, composed of Na+ and H− ions, in co ...
suspension
References
Antiemetics
Anxiolytics
H1 receptor antagonists
Hypnotics
Phenothiazines
Sedatives
{{Anxiolytic-stub