Coja

What kind of inflammation? If it's arthritis type inflammation, you may want to try out cat's claw. http://www.rain-tree.com/catclaw.htm

I found a little toot or smoke of Sceletium tort. to be effective for increasing sexual stamina. Nutmeg apparently works wonders for mice in this regard, however I have no personal experience with that for these purposes. Apparently nutmeg was tested on mice due to a folklore history of nutmeg use as an aphrodisiac.

That pot looks really big for that plant, P. viridis don't grow very rapidly until they're a foot or two tall. Too much soil, particularly moist, can lead to root rot. I've never had problems with established P. alba or viridis, or carth. for that matter, having the soil dry out ... often in the winter months when I bring them inside I only water once the leaves start drooping due to the lack of water.

I've found Psychotria sp. to grow better in one of the cheapest potting soils available, those made of composted pine tree bark and sand, rather than more expensive peat/pearlite blends. I believe they like slightly acidic soils so that may be a part of why they seem to do better in the pine bark soil mixes. You can make leaf cuttings for propagation from pretty much any size leaf, I've usually used 3-5 inch leaves for propagation. Leaf propagation requires a lot of patience, decent humidity and warmth, cut can be done easily in a good sized jar on its side with moist vermiculite to plant the leaf in ... that way it's easy to keep the humidity up and see when roots have formed, just keep the lid on loosely enough to allow some air exchange.