[6] First-line pharmacological treatments include phosphodiesterase type 5 (PDE5) inhibitors, which are licensed, well-studied medications: Sildenafil (Viagra): Typically effective within 30-60 minutes, lasting 4-6 hours [7] Tadalafil (Cialis): Longer duration of action (up to 36 hours), also available as daily low-dose formulation [8] Vardenafil (Levitra): Similar efficacy to sildenafil with slightly different pharmacokinetics Avanafil (Spedra): Take approximately 30 minutes before sexual activity
doi: 10.1096/fj.07-102731 286 SafaiyanS.Besson-GirardS.KayaT.Cantuti-CastelvetriL.LiuL.JiH.et al
If none of those apply and you eat a varied diet that includes animal products, your B12 status is less likely to be a concern during treatment
While some individuals may experience the effects for several weeks, others may find that the benefits wear off sooner
What the label describes as glutathione may in practice be partially spent material
And when I first started using it, I was like, oh, this is an intense smell