Increasing Libido With Magick, Any ideas on ways in which this can be done? Options

I hope this is the right forum to post this...

So I've had problems with a low libido for a good few months now - I suspect it's because of the birth control pill, although I have been off it for a while now so I don't know whether it's just the lingering effects of the pill now or whether the cause is psychological. Anyway it's quite a hassle, since I used to have a very high sex drive, and it's putting strain on my relationship with my boyfriend (a relationship which is otherwise very good).

Lately I've been looking at magickal methods to increase libido, but I'm not quite sure how to go about it. I did do an invocation of Freya a few weeks ago, and even though I'm not too experienced with the whole invocation thing and I wasn't really sure if I was actually doing it right, it did have quite a positive effect on my libido. I'd like to try other things too though, just to get my sex drive back to how it was before. I've tried different herbs, namely ginkgo biloba, damiana, muira puama and ginseng. Haven't had much of an effect. I'm wondering - when using herbs , will they work better if they are somehow 'charged' with magickal energy? I recall reading something about this somewhere. If so, how would this be done?

Basically, I'm just looking for advice on different ways in which libido can be increased by magickal means. I also appreciate hearing from people with similar experiences or personal opinions on this!

Thanks for that! I tried googling for information on the 28th name of Marduk but I found no information related to libido... Unless I'm just not really understanding the following properly:

(28) SIR. SIR,"" who heaped up a mountain over her, Tiamat,

Who the corpse of Tiamat carried off with his weapon; Who directs the land-their faithful shepherd; Whose hair is a grain field, his horned cap furrows;
Who the wide-spreading Sea vaults in his wrath, Crossing (her) like a bridge at the place of single combat.

If you don't mind, could you elaborate a little bit on how this works?

Although I think the invocation of Freya might have had a bigger effect than I thought it did... It just took a while for the results to come..