Our best selling and most popular Erectile Dysfunction medication is Greenstone Sildenafil Citrate (100mg - 50mg) which is the Pfizer brand of Generic Viagra. We also provide Viagra (100mg - 50mg), Cialis (20mg - 10mg), Cialis for Daily Use (5mg), Levitra (20mg - 10mg), Staxyn (10mg), Stendra (200mg - 100mg), and Teva Sildenafil Citrate (100mg - 50mg).