Rex MD aims to decrease this suffering by providing discrete medication subscriptions for men who suffer from these conditions. This Rex MD review found many positive customer responses for this telehealth business. Whereas on Review. Next, this Rex MD review will cover their subscription plan. Based on hundreds of positive reviews that have recommended Rex MD, this online service is a favorite among many men so far. REX MD is here to help men take their health into their own hands. But, most single-use products like Viagra and Cialis can take effect within 30 minutes, and some tend to last a few hours.Does REX MD offer free samples? REX MD does offer a “Two Night Free Sample” of generic Viagra. It is worth noting that the sample is not entirely free — there is a $ shipping fee —. Sample pack discount activated + online consultation & rushed shipping for free! First, we need to make sure we are licensed in your state. E.D. is no laughing matter – Take care of the issue facing 40% of men before it strikes when it counts Take our 5 minute medical information form.