Did a few mins of poking around RE: Speman.
Speman improves the sperm count and the quality of semen by increasing the LH-FSH producing basophil cells in the pituitary. According to the manufacturer.
Clincal study at the link below:
This investigation was aimed to evaluate the effect of Speman[®] , a well known ayurvedic proprietary preparation, in an experimental model of cyclophosphamide-(CP) induced oligospermia in rats.Thirty male rats were randomized in to five, equally-sized ...
www.ncbi.nlm.nih.gov
Unfortunately the study doesnt mention testing for LH/FSH but does demonstrate improved sperm.
May be more info out there, i just got this in a few mins to kick things off for you.