Clorotepine (aka octoclothepin or octoclothepine) is an antipsychotic from the tricyclic group derived from perathiepin. It was originally developed in 1965 and marketed in the Czech Republic by Spofa in or around 1971 for the treatment of schizophrenic psychosis. Clorotepine has a high affinity for the dopamine (D1, D2, D3, D4), receptors the serotonin 5-HT (2A, 2B, 2C, 6, 7) receptors, the alpha-adrenergic receptors (1A, 1B, 1D), and the histamine H1 receptors. In most instances, it acts as an antagonist (or inverse agonist). Clorotepine will also block the reuptake of norepinephrine by inhibiting the norepinephrine transporter.

Pardoprunox is a partial D2/3 dopamine receptor agonist and full 5-HT1A serotonin receptor agonist. Partial D(2/3) dopamine (DA) receptor agonists provide a novel approach to the treatment of the motor symptoms of Parkinson's disease that may avoid common dopaminergic side effects, including dyskinesia and psychosis. Pardoprunox passed phase III clinical trial for the treatment of Parkinson's disease.

Eticlopride {2S(−)-3-chloro-5-ethyl-N-[(1-ethyl-2-pyrrolidinyl)methyl]-6-hydroxy-2-methoxybenzamide} is an antagonist at dopamine D2 and D3 receptors. It is widely used for in vivo, in vitro, and ex vivo examination of D2/D3 receptors densities and function. Eticlopride exerts antipsychotic activity in animals.

Prosulpride is an aminosulfonylbenzamide derivative with potent neuroleptic activity. Prosulpride selectively blocks the presynaptic dopaminergic receptors and antagonize apomorphine-induced stereotyped behavior, circling behavior, climbing behavior, increased motor activity and some other apomorphine-induced effects related to stimulation of postsynaptic dopaminergic receptors.

Odapipam is a benzazepine with high affinity and selectivity for D1-dopamine receptors. Labeled with C-11, it has been used as a PET radiotracer to visualize D1 receptors both in striatal and extrastriatal areas, such as the prefrontal cortex. Odapipam inhibits dopamine D1 receptor binding in vitro with low nanomolar to picomolar dissociation constants. The affinity of [11C]NNC 756 for D1 receptors is 0.18 nM. Odapipam was tested in phase I of clinical trials for the treatment of psychotic disorders, but failed.

Etisulergine (CQ 32-084) is an ergoline derivative. Etisulergine stimulates both dopamine D1- and D2-receptors, antagonizes alpha-adrenergic and serotonin 5-HT2 receptors. Etisulergine demonstrated antiparkinsonian activity in patients.

Nolomirole (CHF1035) is an orally active, selective dopamine agonist, primarily activating DA2- and alpha2 receptors, thereby inhibiting norepinephrine release, which may be beneficial in heart failure. Nolomirole is able to attenuate the heart failure signs in the monocrotaline-induced congestive heart failure. CHF1035 is a mixture of two enantiomers, CHF1800 (+) and CHF1810 (-). CHF1035 and its metabolite CHF1024 significantly decreased the IOP in rabbits, and are potential novel IOP lowering agents. Especially, CHF1035 produced a substantial decrease in IOP for a prolonged period of time, and thus may prove useful in glaucoma therapy. Nolomirole is a pre-synaptic stimulator of DA2-dopaminergic and α2-adrenergic receptors in peripheral sympathetic nerve endings. These receptors act as a negative feedback mechanism, inhibiting norepinephrine secretion. In early phase clinical studies lasting 1–3 months, nolomirole reduced peripheral systemic resistance and 24 hour blood pressure and increased cardiac output. In a study of 29 patients with heart failure, followed for 10 days, a reduction in plasma norepinephrine was demonstrated. In spite of the fact that Nolomirole was in clinical trials for the treatment of heart failure, its development was discontinued.

Alpiropride (RIV-2093) is a dopamine D2-receptor antagonist structurally similar to sulpiride. Alpiropride has been given orally for the treatment and prophylaxis of migraine.

Ciladopa, is a troponylpiperazine derivative and dopamine agonist that has been shown to influence dopaminergic mechanisms in animals. Preclinical pharmacological studies have suggested that it has antiparkinsonian activity similar to that of bromocriptine but without many of the troublesome side effects. Unfortunately in some clinical trials no significant differences was found among the treatment groups and placebo.

Berupipam (also known as NNC 22-0010), a dopamine antagonist with a high affinity and selectivity for D1 receptor has been studied for patients with psychotic disorders. Berupipam participated in phase I clinical trials; however, further development of this drug was discontinued