Yes it's actually safe to take every day. Viagra (Sildenafil) comes in 25mg, 50, 100mg. Few people need 100mg..that is usually reserved for some serious ED problems. Most people use 25mg-50mg. If you dont have any on hand and are having difficulty obtaining it look for a local supplement shop geared towards bodybuilders/athletes (Not GNC. Find a shop geared towards those considered more hardcore). Find out if they sell SARMS and if so ask for Sildenafil (its viagra). Sildenafil isn't a SARM but I've found those stores willing to sell SARMS will usually carry other "gray market supplements" like sildenafil as well. The other benefit of taking viagra is it will lower your blood pressure (this was the original reason for development of viagra). So if you suffer from high blood pressure this will be a win-win. However if you suffer from high blood pressure and take medication for it do not take the 2 together. Last thing to consider - you are doing this to treat a temporary issue. This shouldnt be a permanent solution. Just a little something to get you through until things normalize for you again.