Maca for Menâs Fertility Fertility for both men and women is the longest and most common use of Maca. We know that people indigenous to the high Andes of Peru have used Maca root to boost both human and livestock fertility for 2000 years.
Sublingual (abbreviated SL), from the Latin for under the tongue , refers to the pharmacological route of administration by which drugs diffuse into the blood through tissues under the tongue.
Sublingual (SL) morphine is an effective route of administration at end of life when patients can no longer swallow and parenteral opioids are not feasible or indicated. The onset, peak, and duration of action of SL morphine is similar to oral morphine. Several studies conclude that much of the SL drug may actually be swallowed and absorbed in the GI tract. Some authors believe that SL administration provides a faster onset of pain relief compared to oral, but this has not been proven.