I get some stuffed up sinuses. If my dose is too high I get a headache.
I prefer 10-20mg Cialis before the weekend. Since Cialis is long acting it wears off slowly around 36 hours later so there is no crash. If you only use it a few times per week you won't build a tolerance. Dosing Thursday evening and Saturday evening will keep you ready all week end. Some guys get a BP lowering effect so its actually ideal if you have high BP. Also NO products will make the PDE5 work better so just take some IronMagLabs Bodybuilding Supplements & Prohormones: Nitro4 during the week.
"Oral administration of NITRO4? seems to cause significant subjective improvement in sexual function in men with organic ED if they have decreased NOx excretion or production". Effect of oral administration of high-dose nitric ox... [BJU Int. 1999] - PubMed - NCBI