A. A. A. There are only five oral drugs approved by the FDA to treat erectile dysfunction: tadalafil (Cialis), vardenafil (Levitra, Staxyn), avanafil (Stendra), and sildenafil (Viagra). All work by increasing the flow of blood into the penis so that when a man is sexually stimulated, he can get an erection.
To restore deleted iPhone 4s contacts without itunes backup, you can directly scan and recover contacts from iPhone in a simple way. The steps of directly scan and recover contacts from iPhone: a) Connect your iPhone to the computer. b) Enter DFU mode and scan iPhone.c) Preview and recover iPhone contacts.o restore deleted iPhone 4s contacts without itunes backup, you can directly scan and recover contacts from iPhone in a simple way. The steps of directly scan and recover contacts from iPhone: a) Connect your iPhone to the computer. b) Enter DFU mode and scan iPhone.
Tips & Warnings. 1  If you want to reset and restore your iPhone with iTunes, attach your iPhone to your computer. 2  When your device shows up in iTunes, select Restore iPhone... at the right side of the window and then follow the prompts.ow -- to the joy of those for whom the iPhone is their only computing device -- iOS 8 allows you to factory reset your iPhone and then restore your content and settings without connecting to iTunes. (Image courtesy of Apple, Inc.). Back Up Your iPhone's Content to iCloud.