[Z28Luver7777]

What are some natural PDE5 Inhibitors/Blockers? Are their any foods/drinks/supplements/vitamins/etc... that can be taken to inhibit PDE-5?

[rochabp]

do you mean stuff to get boners?

[HereToStudy]

Yea ED drugs are PDE-5 inhibitors. So he is looking for a herbal viagra.

[WilteredFire]

Icariin should fit the bill perfectly. Heard the taste is worser than CEE at a 20% extract, wondering wether it might be worthwhile getting some still in bulk form or not lol

[GregW]

Was just reading another thread on another board this. Member Ex Dubio posted this:

Based on this paper, the IC50 of sildenafil is 0.42 and the IC50 of icariin is 4.62 for PDE5 inhibition. Thus the dose of icarrin should be approximately ten times a given dose of sildenafil, thus approximately 250mg-1g for typical use.

But icariin has also been shown to have long-term effects on increasing erectile function through eNOS modulation, as I recall. So for long-term use, you may never need to use a dose that is quite so high.

At any rate, you're looking at taking about 1-2g of a 20% extract to see substantial short-term effects. It has essentially no side effects of toxicities that I am aware of, for what it's worth. I was fairly impressed with the 20% from 1fast400, but I'm sure there are better sources.

If you used an extract not standardized for icariin, by the way, you might as well be using a placebo.

There's also research chem for the synthetic PDE-5s

[Z28Luver7777]

Icariin, isn't that Horny Goat Weed?

[WilteredFire]

Icariin, isn't that Horny Goat Weed?

Its from Horny Goat Weed, yes. Its the active that HGW is standardized for.

[rms80]

Its from Horny Goat Weed, yes. Its the active that HGW is standardized for.

We usually have 50-100 kg of the 40% icariin at any given time in our facility- it is some fun stuff to play around with.....

try 1 gram of Epimedium standardized for 40% icariin or 500 mg of the 98% icariin if you can get it- I have done some experimenting, and the effects rival pharmaceutical PDE5 inhibitors- be careful though- if you take too much, you will start seeing all kinds of tracers, spots, etc. b/c of the increase in intraocular pressure

[Z28Luver7777]

We usually have 50-100 kg of the 40% icariin at any given time in our facility- it is some fun stuff to play around with.....

try 1 gram of Epimedium standardized for 40% icariin or 500 mg of the 98% icariin if you can get it- I have done some experimenting, and the effects rival pharmaceutical PDE5 inhibitors- be careful though- if you take too much, you will start seeing all kinds of tracers, spots, etc. b/c of the increase in intraocular pressure

where can you get this stuff?

[SilentBob187]

On Thermogum's site they've got a 50% extract in capsule form (500mg/cap, 100caps)

http://www.thermogum.com/TGSub50x37x1x10021.aspx

[rms80]

where can you get this stuff?

Some of the bulk powder sites had 40 or 50% icariin- Nutra had it for a while- not sure if they still have it or not- they were selling it in 50 gram increments.....

[Z28Luver7777]

We usually have 50-100 kg of the 40% icariin at any given time in our facility- it is some fun stuff to play around with.....

try 1 gram of Epimedium standardized for 40% icariin or 500 mg of the 98% icariin if you can get it- I have done some experimenting, and the effects rival pharmaceutical PDE5 inhibitors- be careful though- if you take too much, you will start seeing all kinds of tracers, spots, etc. b/c of the increase in intraocular pressure

Would you say that the effects are similar to the pharmaceutical PDE5 inhibitors or doesn't come close?

[wastedwhiteboy2]

Arginine.

[rms80]

Would you say that the effects are similar to the pharmaceutical PDE5 inhibitors or doesn't come close?

Yes and no- the effect "down there" seems to be much more pronounced with the pharma PDE5 inhibitors, but as far as peripheral vasodilation, highly extracted icariin definitely shines. Icariin at the dosages that I mentioned will also have an effect in the aforementioned region, albeit not as strong as slidenafil or taladafil.....

Interestingly enough- you will actually get visual disturbances at much lower relative dosages from high doses of icariin than pharmaceutical PDE5 inhibitors. These compounds are very efficient at increasing intraocular pressure (part of the peripheral vasodilating effect)- you have to be careful when dosing them

[Z28Luver7777]

Yes and no- the effect "down there" seems to be much more pronounced with the pharma PDE5 inhibitors, but as far as peripheral vasodilation, highly extracted icariin definitely shines. Icariin at the dosages that I mentioned will also have an effect in the aforementioned region, albeit not as strong as slidenafil or taladafil.....

Interestingly enough- you will actually get visual disturbances at much lower relative dosages from high doses of icariin than pharmaceutical PDE5 inhibitors. These compounds are very efficient at increasing intraocular pressure (part of the peripheral vasodilating effect)- you have to be careful when dosing them

Awesome Thank You!

Has anyone else tried both Icariin and slidenafil or taladafil. Which do you prefer? and Why? Thank You

[BamaDog]

Arginine.

Not targeted enough I don't think?

[JoeHT]

Best natural PDE5 inhibitor: Xanthoparmelia Scabrosa 50% Piperizine (google it)

[Robboe]

Best natural PDE5 inhibitor: Xanthoparmelia Scabrosa 50% Piperizine (google it)

There is nothing on pubmed proving this. Is there any science to back it, or just a lot of anecdote?

[HereToStudy]

There is nothing on pubmed proving this. Is there any science to back it, or just a lot of anecdote?

I only saw information on sites attempting to sell the product as well. PubMed, nothing...

[Robboe]

I only saw information on sites attempting to sell the product as well. PubMed, nothing...

Maybe clinical science hasn't caught up to it yet. No doubt there is a ton of awesome compounds that are well known locally around the world that have yet to reach the research stage.

[JoeHT]

There is nothing on pubmed proving this. Is there any science to back it, or just a lot of anecdote?

Just based on my personal experience, having tried others like Icariin 50%.

BTW, it works even better stacked with Cnidium Monnier 50% Osthole.

[Robboe]

Just based on my personal experience, having tried others like Icariin 50%.

BTW, it works even better stacked with Cnidium Monnier 50% Osthole.

The research on osthol helping to relax the corpus cavernosum is pretty decent.

[BamaDog]

Maybe clinical science hasn't caught up to it yet. No doubt there is a ton of awesome compounds that are well known locally around the world that have yet to reach the research stage.

Some probably won't ever make it because money can't be made on them, unfortunate how that works .

[HereToStudy]

Some probably won't ever make it because money can't be made on them, unfortunate how that works .

I disagree. I agree with your overall concept, but if someone could produce an OTC PDE5 inhibitor, they would be a million dollar supplement company overnight. The biggest problem is that pharma companies would lobby to get it banned, wouldnt want to cut profits out of viagra/cialis profits.

[UKStrength]

I disagree. I agree with your overall concept, but if someone could produce an OTC PDE5 inhibitor, they would be a million dollar supplement company overnight. The biggest problem is that pharma companies would lobby to get it banned, wouldnt want to cut profits out of viagra/cialis profits.

Agreed, unfortunately the big pharmaceutical companies rule and would squash any potential competitor in an instant.