Online pharmacies also may not fill short-term prescriptions, such as those for antibiotics. Online pharmacies can be broadly categorized as: Mail-order pharmacies are operated by pharmacy benefits managers PBMs on behalf of health insurers or providers. Also, look into whether expediting is offered. Firstly, there are various types of PDE5 inhibitors such as sildenafil, tadalafil and vardenafil. It does not increase sex drive. Their main differences are how long they take to have an effect and how long the effects last for. · SINGAPORE – A doctor has been suspended for five months for trying to sell an erectile dysfunction drug to a man who was not his patient. Although the man did not Missing: levitra. 1. Re: sildenafil/viagra 5 years ago Save Of course you can, sildenafil is wellness type of medicine. I do take them and most 50+ ages and above male adults do that here too. An . Levitra, known by the generic name vardenafil hydrochloride, is an erectile dysfunction (ED) medication first manufactured by the German company Bayer Missing: singapore.