The acute toxicity and lethality (LD 50 ) of V. doniana extracts in rats (n = 15) were estimated using the method described by Lorke [ 14 ]. In the first trial, animals received oral administration of 10, 100, and 1000 mg/kg (n = 5) of V. doniana extracts and were observed for 24 h. Since no death occurred in any of the groups in the first stage of the test, 1500, 2500, and 5000 mg/kg doses of the extract were administered to a fresh batch of animals (n = 5), and no lethality or behaviour changes were observed within 24 h. A repeat of the test with a fresh batch of animals using the intraperitoneal (i. p.) route also indicated no lethality. Thus, the oral and i. p. LD 50 values in rats were found to be greater than 5000 mg/kg, indicating a lack of acute toxicity.

I tried the cup of raisins before bed and woke up before dawn with an erection reminiscent of days gone by, that lasted for over an hour. Pretty awesome! Though peeing was a long and drawn out affair.
I just had my T checked as I was not getting them any more, neither was I much interested in sex. The test came back with a paltry 305 @ 46yrs old. Just a year ago my erections used to have a bitter sweet ache to them. After going close to zero carb I lost my power, my head hair, got rosacea, limp erections, and my nitric oxide plummeted. I stopped training as it was painful and although I was eager to exercise my body just didn’t seem up to it. ( come to think of it now after reading all these articles, it would seem that lower elasticity of my arteries(low NO) was the reason.)