Ditto. I had similar experience with bromocriptine back in the old days since I didn’t get much improvements (if any). They might prove helpful for subset of individuals, though. They’re also not a long term solution since PRL is said to exert important effects on maintaining dopaminergic neurons.
This is yet another rats study from NCBI:
"Chronic stress exposure and depressive states are known to affect neurogenesis. Neurogenesis is the process that produces new neurons throughout life. New neurons are thought to transiently increase neuronal communication. Two neurogenic niches have been recognized in the adult brain: the hippocampus and the SVZ. The hippocampus exerts a negative control on the HPA axis activity and it is involved in emotional modulation. Antidepressive treatments increase hippocampal neurogenesis and show a correlation with mood improvement (44). Olfactory bulb neurogenesis and olfactory dysfunction are also decreased by CMS exposure, a procedure that is known to induce depressive-like states (45).
Prolactin is a regulator of neurogenesis. PRL receptors are expressed in the SVZ and the hippocampus (46–48). Initial evidence of the relationship between PRL and neurogenesis has been reported by studies showing an increase in neurogenesis in the SVZ of pregnant females. This increase was found to be mediated by PRL (47), and it was hypothesized that the olfactory discrimination of odor cues related to pups is critical for maternal success. Other olfactory signals are important cues that also induce neurogenesis in the SVZ and in the hippocampus. Exposure to pheromones from a dominant male induces cell proliferation in both the olfactory bulb and the hippocampus of female mice. These effects are mediated by PRL in the olfactory bulb and luteinizing hormone in the hippocampus, and both hormones contribute to the regulation of female reproduction (49). Exposure to male pheromones increases SVZ neurogenesis and promotes maternal behavior in virgin and postpartum females (50). Injections of bromocriptine, a dopamine agonist, in female rats during the first days of pregnancy to lower PRL levels, reduces olfactory neurogenesis and induces behavioral alterations postpartum (41). These reports clearly suggest that PRL may regulate SVZ neurogenesis and play a key role in mood regulation."
Now this is purely anecdotal, but I’ve previously observed that 2-3 sauna sessions (15mins each) have elevated my libido significantly in the following day. Sauna (heat stress) is known to trigger catecholamines and prolactin release. This may have been the reason for me heightened libido.