Pindolol

Last updated

Pindolol
Pindolol.svg
Pindolol-3D-spacefill.png
Clinical data
Trade names Visken, others [1]
AHFS/Drugs.com Monograph
MedlinePlus a684032
Pregnancy
category
  • AU:C
Routes of
administration
By mouth, intravenous
ATC code
Legal status
Legal status
  • In general: ℞ (Prescription only)
Pharmacokinetic data
Bioavailability 50% to 95%
Metabolism Hepatic
Elimination half-life 34 hours
Excretion Renal
Identifiers
  • (RS)-1-(1H-indol-4-yloxy)-3-(isopropylamino)propan-2-ol
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard 100.033.501 OOjs UI icon edit-ltr-progressive.svg
Chemical and physical data
Formula C14H20N2O2
Molar mass 248.326 g·mol−1
3D model (JSmol)
Chirality Racemic mixture
  • CC(C)NCC(O)COc2cccc1[nH]ccc12
  • InChI=1S/C14H20N2O2/c1-10(2)16-8-11(17)9-18-14-5-3-4-13-12(14)6-7-15-13/h3-7,10-11,15-17H,8-9H2,1-2H3 X mark.svgN
  • Key:JZQKKSLKJUAGIC-UHFFFAOYSA-N X mark.svgN
 X mark.svgNYes check.svgY  (what is this?)    (verify)

Pindolol, sold under the brand name Visken among others, is a nonselective beta blocker which is used in the treatment of hypertension. [1] [2] It is also an antagonist of the serotonin 5-HT1A receptor, preferentially blocking inhibitory 5-HT1A autoreceptors, and has been researched as an add-on therapy to various antidepressants, such as clomipramine and the selective serotonin reuptake inhibitors (SSRIs), in the treatment of depression [3] [4] [5] and obsessive-compulsive disorder. [6] [7]

Contents

Medical uses

Pindolol is used for hypertension in the United States, Canada, and Europe, and also for angina pectoris outside the United States. [2] When used alone for hypertension, pindolol can significantly lower blood pressure and heart rate, but the evidence base for its use is weak as the number of subjects in published studies is small. [2] In some countries, pindolol is also used for arrhythmias and prophylaxis of acute stress reactions.[ medical citation needed ]

Contraindications

Similar to propranolol with an extra contraindication for hyperthyroidism. In patients with thyrotoxicosis, possible deleterious effects from long-term use of pindolol have not been adequately appraised. Beta-blockade may mask the clinical signs of continuing hyperthyroidism or complications, and give a false impression of improvement. Therefore, abrupt withdrawal of pindolol may be followed by an exacerbation of the symptoms of hyperthyroidism, including thyroid storm. [8]

Pindolol has intrinsic sympathomimetic activity and is therefore used with caution in angina pectoris. [8]

Pharmacology

Pharmacodynamics

Pindolol [9]
SiteKi (nM)SpeciesRef
5-HT1A 15–81Human [10] [11] [12]
5-HT1B 4,100
34–151
Human
Rodent
[11]
[9] [13] [14]
5-HT1D 4,900Human [11]
5-HT1E >10,000Human [15]
5-HT1F >10,000Human [16]
5-HT2A 9,333Human [17]
5-HT2B 2,188Human [17]
5-HT2C >10,000Human [17]
5-HT3 ≥6,610Multiple [18] [19] [20]
5-HT4 >10,000 ?Rat [21]
5-HT5B >1,000Rat [22]
5-HT6 >10,000 ()Mouse [23]
5-HT7 >10,000Human [24] [25]
α1 7,585Pigeon [18]
α2 NDNDND
β1 0.52–2.6Human [12] [26]
β2 0.40–4.8Human [12] [26]
β3 44Human [26] [27]
D2-like >10,000Rat [28]
   D2 >10,000Pigeon [18]
   D3 >10,000Pigeon [18]
M1 ??
Values are Ki (nM), unless otherwise noted. The smaller the value, the more strongly the drug binds to the site.

Pindolol is a first generation, [29] non-selective beta blocker in the class of β-adrenergic receptor antagonists. On the receptor level it is a competitive partial agonist. It possesses intrinsic sympathomimetic activity, meaning it has some degree of agonist effects in the absence of competing ligands. Pindolol shows membrane-stabilizing effects like quinidine, possibly accounting for its antiarrhythmic effects. It also acts as a serotonin 5-HT1A receptor partial agonist (intrinsic activity = 20–25%) or functional antagonist. [30]

Pharmacokinetics

Pindolol is rapidly and well absorbed from the GI tract. It undergoes some first-pass-metabolization leading to an oral bioavailability of 50-95%. Patients with uremia may have a reduced bioavailability. Food does not alter the bioavailability, but may increase the resorption. Following an oral single dose of 20 mg peak plasma concentrations are reached within 1–2 hours. The effect of pindolol on pulse rate (lowering) is evident after 3 hours. Despite the rather short halflife of 3–4 hours, hemodynamic effects persist for 24 hours after administration. Plasma halflives are increased to 3–11.5 hours in patients with renal impairment, to 7–15 hours in elderly patients, and from 2.5 to 30 hours in patients with liver cirrhosis. Approximately 2/3 of pindolol is metabolized in the liver giving hydroxylates, which are found in the urine as gluconurides and ethereal sulfates. The remaining 1/3 of pindolol is excreted in urine in unchanged form.

History

Pindolol was patented by Sandoz in 1969 and was launched in the US in 1977. [31] Towards end of February 2020 FDA added this product to their "DRUG SHORTAGE" list stating this is due to "Shortage of an active ingredient" and this is likely to be related to Coronavirus outbreak and related supply chain impacts.

Research

Depression

Pindolol has been investigated as an add-on drug to antidepressant therapy with SSRIs like fluoxetine in the treatment of depression since 1994. [32] [5] The rationale behind this strategy has its basis in the fact that pindolol is an antagonist of the serotonin 5-HT1A receptor. [4] Presynaptic and somatodendritic 5-HT1A receptors act as inhibitory autoreceptors, inhibit serotonin release, and are pro-depressive in their action. [4] This is in contrast to postsynaptic 5-HT1A receptors, which mediate antidepressant effects. [4] By blocking 5-HT1A autoreceptors at doses that are selective for them over postsynaptic 5-HT1A receptors, pindolol may be able to disinhibit serotonin release and thereby improve the antidepressant effects of SSRIs. [4] The results of augmentation therapy with pindolol have been encouraging in early studies of low quality. [3] A 2015 systematic review and meta-analysis of five randomized controlled trials found no overall significant benefit at 2.5 mg although, with regard to patients with SSRI-resistant depression, "once-daily high-dose pindolol (7.5 mg qd) appears to show a promising benefit in these patients". [5] On the other hand, a 2017 systematic review indicated that pindolol's efficacy has been demonstrated in high evidence studies. [33] Initiating pharmacotherapy with an SSRI plus pindolol might accelerate the SSRI's therapeutic impact. [4] [33] Pindolol's antidepressive efficacy may predominantly result from its ability to desensitize 5-HT1A autoreceptors. [34]

Others

See also

Related Research Articles

<span class="mw-page-title-main">5-HT receptor</span> Class of transmembrane proteins

5-HT receptors, 5-hydroxytryptamine receptors, or serotonin receptors, are a group of G protein-coupled receptor and ligand-gated ion channels found in the central and peripheral nervous systems. They mediate both excitatory and inhibitory neurotransmission. The serotonin receptors are activated by the neurotransmitter serotonin, which acts as their natural ligand.

<span class="mw-page-title-main">Azapirone</span> Drug class of psycotropic drugs

Azapirones are a class of drugs used as anxiolytics, antidepressants, and antipsychotics. They are commonly used as add-ons to other antidepressants, such as selective serotonin reuptake inhibitors (SSRIs).

<span class="mw-page-title-main">Noradrenergic and specific serotonergic antidepressant</span> Class of antidepressants

Noradrenergic and specific serotonergic antidepressants (NaSSAs) are a class of psychiatric drugs used primarily as antidepressants. They act by antagonizing the α2-adrenergic receptor and certain serotonin receptors such as 5-HT2A and 5-HT2C, but also 5-HT3, 5-HT6, and/or 5-HT7 in some cases. By blocking α2-adrenergic autoreceptors and heteroreceptors, NaSSAs enhance adrenergic and serotonergic neurotransmission in the brain involved in mood regulation, notably 5-HT1A-mediated transmission. In addition, due to their blockade of certain serotonin receptors, serotonergic neurotransmission is not facilitated in unwanted areas, which prevents the incidence of many side effects often associated with selective serotonin reuptake inhibitor (SSRI) antidepressants; hence, in part, the "specific serotonergic" label of NaSSAs.

5-HT<sub>1A</sub> receptor Serotonin receptor protein distributed in the cerebrum and raphe nucleus

The serotonin 1A receptor is a subtype of serotonin receptors, or 5-HT receptors, that binds serotonin, also known as 5-HT, a neurotransmitter. 5-HT1A is expressed in the brain, spleen, and neonatal kidney. It is a G protein-coupled receptor (GPCR), coupled to the Gi protein, and its activation in the brain mediates hyperpolarization and reduction of firing rate of the postsynaptic neuron. In humans, the serotonin 1A receptor is encoded by the HTR1A gene.

5-HT<sub>1B</sub> receptor Mammalian protein found in Homo sapiens

5-hydroxytryptamine receptor 1B also known as the 5-HT1B receptor is a protein that in humans is encoded by the HTR1B gene. The 5-HT1B receptor is a 5-HT receptor subtype.

<span class="mw-page-title-main">8-OH-DPAT</span> Chemical compound

8-OH-DPAT is a research chemical of the aminotetralin chemical class which was developed in the 1980s and has been widely used to study the function of the 5-HT1A receptor. It was one of the first major 5-HT1A receptor full agonists to have been discovered.

5-HT<sub>5A</sub> receptor Protein-coding gene in the species Homo sapiens

5-Hydroxytryptamine (serotonin) receptor 5A, also known as HTR5A, is a protein that in humans is encoded by the HTR5A gene. Agonists and antagonists for 5-HT receptors, as well as serotonin uptake inhibitors, present promnesic (memory-promoting) and/or anti-amnesic effects under different conditions, and 5-HT receptors are also associated with neural changes.

5-HT<sub>7</sub> receptor Protein-coding gene in the species Homo sapiens

The 5-HT7 receptor is a member of the GPCR superfamily of cell surface receptors and is activated by the neurotransmitter serotonin (5-hydroxytryptamine, 5-HT). The 5-HT7 receptor is coupled to Gs (stimulates the production of the intracellular signaling molecule cAMP) and is expressed in a variety of human tissues, particularly in the brain, the gastrointestinal tract, and in various blood vessels. This receptor has been a drug development target for the treatment of several clinical disorders. The 5-HT7 receptor is encoded by the HTR7 gene, which in humans is transcribed into 3 different splice variants.

<span class="mw-page-title-main">WAY-100635</span> Chemical compound

WAY-100635 is a piperazine drug and research chemical widely used in scientific studies. It was originally believed to act as a selective 5-HT1A receptor antagonist, but subsequent research showed that it also acts as potent full agonist at the D4 receptor. It is sometimes referred to as a silent antagonist at the former receptor. It is closely related to WAY-100135.

<span class="mw-page-title-main">Robalzotan</span> Chemical compound

Robalzotan is a selective antagonist at the 5-HT1A receptor. It was shown to completely reverse the autoreceptor-mediated inhibition of serotonin release induced by the administration of selective serotonin reuptake inhibitors like citalopram in rodent studies. It was subsequently investigated by AstraZeneca as a potential antidepressant but like many other 5-HT1A ligands was discontinued. Later on it was researched for other indications such as irritable bowel syndrome but was dropped once again.

<span class="mw-page-title-main">S-15535</span> Chemical compound

S-15535 is a phenylpiperazine drug which is a potent and highly selective 5-HT1A receptor ligand that acts as an agonist and antagonist at the presynaptic and postsynaptic 5-HT1A receptors, respectively. It has anxiolytic properties.

<span class="mw-page-title-main">Befiradol</span> Chemical compound

Befiradol is an experimental drug being studied for the treatment of levodopa-induced dyskinesia. It is a potent and selective 5-HT1A receptor full agonist.

<span class="mw-page-title-main">Serotonin antagonist and reuptake inhibitor</span> Class of drug

Serotonin antagonist and reuptake inhibitors (SARIs) are a class of drugs used mainly as antidepressants, but also as anxiolytics and hypnotics. They act by antagonizing serotonin receptors such as 5-HT2A and inhibiting the reuptake of serotonin, norepinephrine, and/or dopamine. Additionally, most also antagonize α1-adrenergic receptors. The majority of the currently marketed SARIs belong to the phenylpiperazine class of compounds.

<span class="mw-page-title-main">Roxindole</span> Dopaminergic & serotonergic drug developed for schizophrenia treatment

Roxindole (EMD-49,980) is a dopaminergic and serotonergic drug which was originally developed by Merck KGaA for the treatment of schizophrenia. In clinical trials its antipsychotic efficacy was only modest but it was unexpectedly found to produce potent and rapid antidepressant and anxiolytic effects. As a result, roxindole was further researched for the treatment of depression instead. It has also been investigated as a therapy for Parkinson's disease and prolactinoma.

<span class="mw-page-title-main">F-15,599</span> Chemical compound

F-15,599, also known as NLX-101, is a potent and selective 5-HT1A receptor full agonist. In addition, it displays functional selectivity, or biased agonism, by preferentially activating postsynaptic serotonin 5-HT1A receptors over somatodendritic serotonin 5-HT1A autoreceptors. The drug has been investigated for potential use as a pharmaceutical drug in the treatment of conditions including depression, schizophrenia, cognitive disorders, Rett syndrome, and fragile X syndrome.

<span class="mw-page-title-main">Osemozotan</span> Pharmaceutical drug

Osemozotan (MKC-242) is a selective 5-HT1A receptor agonist with some functional selectivity, acting as a full agonist at presynaptic and a partial agonist at postsynaptic 5-HT1A receptors. 5-HT1A receptor stimulation influences the release of various neurotransmitters including serotonin, dopamine, norepinephrine, and acetylcholine. 5-HT1A receptors are inhibitory G protein-coupled receptor.

A serotonin modulator and stimulator (SMS), sometimes referred to more simply as a serotonin modulator, is a type of drug with a multimodal action specific to the serotonin neurotransmitter system. To be precise, SMSs simultaneously modulate one or more serotonin receptors and inhibit the reuptake of serotonin. The term was created to describe the mechanism of action of the serotonergic antidepressant vortioxetine, which acts as a serotonin reuptake inhibitor (SRI), agonist of the 5-HT1A receptor, and antagonist of the 5-HT3 and 5-HT7 receptors. However, it can also technically be applied to vilazodone, which is an antidepressant as well and acts as an SRI and 5-HT1A receptor partial agonist.

Selective serotonin reuptake inhibitors, or serotonin-specific re-uptake inhibitor (SSRIs), are a class of chemical compounds that have application as antidepressants and in the treatment of depression and other psychiatric disorders. SSRIs are therapeutically useful in the treatment of panic disorder (PD), posttraumatic stress disorder (PTSD), social anxiety disorder, obsessive-compulsive disorder (OCD), premenstrual dysphoric disorder (PMDD), and anorexia. There is also clinical evidence of the value of SSRIs in the treatment of the symptoms of schizophrenia and their ability to prevent cardiovascular diseases.

<span class="mw-page-title-main">Hypidone</span> Investigational antidepressant drug

Hypidone (developmental code name YL-0919) is an investigational serotonergic antidepressant which is under development for the treatment of major depressive disorder. It acts as a serotonin reuptake inhibitor, 5-HT1A receptor partial agonist, and 5-HT6 receptor full agonist. It is used as the hydrochloride salt. As of January 2021, hypidone is in phase 2 clinical trials for major depressive disorder.

References

  1. 1 2 Drugs.com International brand names for pindolol Archived 2017-10-01 at the Wayback Machine Page accessed Sept 4, 2015
  2. 1 2 3 Wong GW, Boyda HN, Wright JM (November 2014). "Blood pressure lowering efficacy of partial agonist beta blocker monotherapy for primary hypertension". The Cochrane Database of Systematic Reviews. 2014 (11): CD007450. doi:10.1002/14651858.CD007450.pub2. PMC   6486122 . PMID   25427719.
  3. 1 2 Blier P, Bergeron R (1998). "The use of pindolol to potentiate antidepressant medication". The Journal of Clinical Psychiatry. 59 (Suppl 5): 16–23, discussion 24–5. PMID   9635544.
  4. 1 2 3 4 5 6 Celada P, Bortolozzi A, Artigas F (September 2013). "Serotonin 5-HT1A receptors as targets for agents to treat psychiatric disorders: rationale and current status of research". CNS Drugs. 27 (9): 703–716. doi:10.1007/s40263-013-0071-0. PMID   23757185. S2CID   31931009.
  5. 1 2 3 Liu Y, Zhou X, Zhu D, Chen J, Qin B, Zhang Y, et al. (May 2015). "Is pindolol augmentation effective in depressed patients resistant to selective serotonin reuptake inhibitors? A systematic review and meta-analysis". Human Psychopharmacology. 30 (3): 132–142. doi:10.1002/hup.2465. PMID   25689398. S2CID   205925716.
  6. Mundo, Emanuela, Emanuela Guglielmo, and Laura Bellodi. "Effect of adjuvant pindolol on the antiobsessional response to fluvoxamine: a double blind, placedo-controlled study." International clinical psychopharmacology 13, no. 5 (1998): 219-224.
  7. Sassano-Higgins, S.A. and Pato, M.T., 2015. Pindolol augmentation of selective serotonin reuptake inhibitors and clomipramine for the treatment of obsessive-compulsive disorder: A meta-analysis. Journal of Pharmacology and Pharmacotherapeutics, 6(1), pp.36-38.
  8. 1 2 "RxMed: Pharmaceutical Information - VISKEN". Archived from the original on 2011-09-27. Retrieved 2010-08-15.
  9. 1 2 Roth BL, Driscol J. "PDSP Ki Database". Psychoactive Drug Screening Program (PDSP). University of North Carolina at Chapel Hill and the United States National Institute of Mental Health. Retrieved 14 August 2017.
  10. Hamon M, Lanfumey L, el Mestikawy S, Boni C, Miquel MC, Bolaños F, et al. (1990). "The main features of central 5-HT1 receptors". Neuropsychopharmacology. 3 (5–6): 349–360. PMID   2078271.
  11. 1 2 3 Weinshank RL, Zgombick JM, Macchi MJ, Branchek TA, Hartig PR (April 1992). "Human serotonin 1D receptor is encoded by a subfamily of two distinct genes: 5-HT1D alpha and 5-HT1D beta". Proceedings of the National Academy of Sciences of the United States of America. 89 (8): 3630–3634. Bibcode:1992PNAS...89.3630W. doi: 10.1073/pnas.89.8.3630 . PMC   48922 . PMID   1565658.
  12. 1 2 3 Krushinski JH, Schaus JM, Thompson DC, Calligaro DO, Nelson DL, Luecke SH, et al. (October 2007). "Indoloxypropanolamine analogues as 5-HT(1A) receptor antagonists". Bioorganic & Medicinal Chemistry Letters. 17 (20): 5600–5604. doi:10.1016/j.bmcl.2007.07.086. PMID   17804228.
  13. Boess FG, Martin IL (1994). "Molecular biology of 5-HT receptors". Neuropharmacology. 33 (3–4): 275–317. doi:10.1016/0028-3908(94)90059-0. PMID   7984267. S2CID   35553281.
  14. Rojas-Corrales OM, Ortega-Alvaro A, Gibert-Rahola J, Roca-Vinardell A, Micó JA (November 2000). "Pindolol, a beta-adrenoceptor blocker/5-hydroxytryptamine(1A/1B) antagonist, enhances the analgesic effect of tramadol". Pain. 88 (2): 119–124. doi:10.1016/S0304-3959(00)00299-2. PMID   11050366.
  15. Zgombick JM, Schechter LE, Macchi M, Hartig PR, Branchek TA, Weinshank RL (August 1992). "Human gene S31 encodes the pharmacologically defined serotonin 5-hydroxytryptamine1E receptor". Molecular Pharmacology. 42 (2): 180–185. PMID   1513320.
  16. Adham N, Kao HT, Schecter LE, Bard J, Olsen M, Urquhart D, et al. (January 1993). "Cloning of another human serotonin receptor (5-HT1F): a fifth 5-HT1 receptor subtype coupled to the inhibition of adenylate cyclase". Proceedings of the National Academy of Sciences of the United States of America. 90 (2): 408–412. Bibcode:1993PNAS...90..408A. doi: 10.1073/pnas.90.2.408 . PMC   45671 . PMID   8380639.
  17. 1 2 3 Knight AR, Misra A, Quirk K, Benwell K, Revell D, Kennett G, et al. (August 2004). "Pharmacological characterisation of the agonist radioligand binding site of 5-HT(2A), 5-HT(2B) and 5-HT(2C) receptors". Naunyn-Schmiedeberg's Archives of Pharmacology. 370 (2): 114–123. doi:10.1007/s00210-004-0951-4. PMID   15322733. S2CID   8938111.
  18. 1 2 3 4 Mos J, Van Hest A, Van Drimmelen M, Herremans AH, Olivier B (May 1997). "The putative 5-HT1A receptor antagonist DU125530 blocks the discriminative stimulus of the 5-HT1A receptor agonist flesinoxan in pigeons". European Journal of Pharmacology. 325 (2–3): 145–153. doi:10.1016/s0014-2999(97)00131-3. PMID   9163561.
  19. Neijt HC, Karpf A, Schoeffter P, Engel G, Hoyer D (May 1988). "Characterisation of 5-HT3 recognition sites in membranes of NG 108-15 neuroblastoma-glioma cells with [3H]ICS 205-930". Naunyn-Schmiedeberg's Archives of Pharmacology. 337 (5): 493–499. doi:10.1007/bf00182721. PMID   3412489. S2CID   1594844.
  20. Hoyer D, Neijt HC (March 1988). "Identification of serotonin 5-HT3 recognition sites in membranes of N1E-115 neuroblastoma cells by radioligand binding". Molecular Pharmacology. 33 (3): 303–309. PMID   3352595.
  21. Ge J, Barnes NM (April 1996). "5-HT4 receptor-mediated modulation of 5-HT release in the rat hippocampus in vivo". British Journal of Pharmacology. 117 (7): 1475–1480. doi:10.1111/j.1476-5381.1996.tb15309.x. PMC   1909436 . PMID   8730742.
  22. Wisden W, Parker EM, Mahle CD, Grisel DA, Nowak HP, Yocca FD, et al. (October 1993). "Cloning and characterization of the rat 5-HT5B receptor. Evidence that the 5-HT5B receptor couples to a G protein in mammalian cell membranes". FEBS Letters. 333 (1–2): 25–31. doi: 10.1016/0014-5793(93)80368-5 . PMID   8224165.
  23. Plassat JL, Amlaiky N, Hen R (August 1993). "Molecular cloning of a mammalian serotonin receptor that activates adenylate cyclase". Molecular Pharmacology. 44 (2): 229–236. PMID   8394987.
  24. Bard JA, Zgombick J, Adham N, Vaysse P, Branchek TA, Weinshank RL (November 1993). "Cloning of a novel human serotonin receptor (5-HT7) positively linked to adenylate cyclase". The Journal of Biological Chemistry. 268 (31): 23422–23426. doi: 10.1016/S0021-9258(19)49479-9 . PMID   8226867.
  25. Jasper JR, Kosaka A, To ZP, Chang DJ, Eglen RM (September 1997). "Cloning, expression and pharmacology of a truncated splice variant of the human 5-HT7 receptor (h5-HT7b)". British Journal of Pharmacology. 122 (1): 126–132. doi:10.1038/sj.bjp.0701336. PMC   1564895 . PMID   9298538.
  26. 1 2 3 Hoffmann C, Leitz MR, Oberdorf-Maass S, Lohse MJ, Klotz KN (February 2004). "Comparative pharmacology of human beta-adrenergic receptor subtypes--characterization of stably transfected receptors in CHO cells". Naunyn-Schmiedeberg's Archives of Pharmacology. 369 (2): 151–159. doi:10.1007/s00210-003-0860-y. PMID   14730417. S2CID   878491.
  27. Horinouchi T, Koike K (January 2001). "(+/-)-Pindolol acts as a partial agonist at atypical beta-adrenoceptors in the guinea pig duodenum". Japanese Journal of Pharmacology. 85 (1): 35–40. doi: 10.1254/jjp.85.35 . PMID   11243572.
  28. Luedtke RR, Freeman RA, Boundy VA, Martin MW, Huang Y, Mach RH (December 2000). "Characterization of (125)I-IABN, a novel azabicyclononane benzamide selective for D2-like dopamine receptors". Synapse. 38 (4): 438–449. doi:10.1002/1098-2396(20001215)38:4<438::AID-SYN9>3.0.CO;2-5. PMID   11044891. S2CID   9578132.
  29. Wiysonge CS, Volmink J, Opie LH (2007). "Beta-blockers and the treatment of hypertension: it is time to move on". Cardiovascular Journal of Africa. 18 (6): 351–352. PMC   4170499 . PMID   18092107.
  30. Artigas F, Adell A, Celada P (February 2006). "Pindolol augmentation of antidepressant response". Current Drug Targets. 7 (2): 139–147. doi:10.2174/138945006775515446. PMID   16475955.
  31. "Discovery and Development of Major Drugs. Chapter 2 in Pharmaceutical Innovation: Revolutionizing Human Health. Volume 2 of Chemical Heritage Foundation series in innovation and entrepreneurship. Eds Ralph Landau, Basil Achilladelis, Alexander Scriabine. Chemical Heritage Foundation, 1999. ISBN   9780941901215 p 185
  32. Pérez, V., Gilaberte, I., Faries, D., Alvarez, E. and Artigas, F., 1997. Randomised, double-blind, placebo-controlled trial of pindolol in combination with fluoxetine antidepressant treatment. The Lancet, 349(9065), pp.1594-1597.
  33. 1 2 Kleeblatt J, Betzler F, Kilarski LL, Bschor T, Köhler S (May 2017). "Efficacy of off-label augmentation in unipolar depression: A systematic review of the evidence". European Neuropsychopharmacology. 27 (5): 423–441. doi:10.1016/j.euroneuro.2017.03.003. PMID   28318897. S2CID   3740987.
  34. Haddjeri N, Blier P (September 2000). "Effects of sustained (+/-)pindolol administration on serotonin neurotransmission in rats". Journal of Psychiatry & Neuroscience. 25 (4): 378–388. PMC   1407726 . PMID   11022403.
  35. Fernandes E, Gomes A, Costa D, Lima JL (September 2005). "Pindolol is a potent scavenger of reactive nitrogen species". Life Sciences. 77 (16): 1983–1992. doi:10.1016/j.lfs.2005.02.018. PMID   15916777.
  36. Safarinejad MR (February 2008). "Once-daily high-dose pindolol for paroxetine-refractory premature ejaculation: a double-blind, placebo-controlled and randomized study". Journal of Clinical Psychopharmacology. 28 (1): 39–44. doi:10.1097/jcp.0b013e31816073a5. PMID   18204339. S2CID   9936458. (Retracted, see doi:10.1097/JCP.0000000000001540, PMID   35230053 . If this is an intentional citation to a retracted paper, please replace {{ retracted |...}} with {{ retracted |...|intentional=yes}}.)