If Sildenafil ratiopharm is taken with food, the onset of activity may be delayed compared with taking Sildenafil ratiopharm without food. Levitra vardenafil : This medication is taken one hour before sex and can last up to 24 hours. It’s available in 50 mg, mg, and mg tablets. Follow-up support: Make sure you can get the help you need if questions or concerns arise after ordering. Viagra is produced by the pharmaceutical company Pfizer. Sildenafil helps relax the blood vessels in the penis, which, in the presence of sexual stimulation, allows blood to flow into the penis and helps with achieving or maintaining an erection. This does not mean that you will have an erection for four hours, but rather that you have the potential for an improved erection as long as the drug lasts in your body.If you’re interested in buying Viagra online, five of the best options available are Hims, Roman, Lemonaid, Optum Store, and REX MD. Read on for full details on the process and pricing. A quick Missing: europe. It is available as tablets (25, 50 and mg). Sildenafil ratiopharm is a ‘ generic medicine ’. This means that Sildenafil ratiopharm is similar to a ‘reference medicine’ already authorised in the European Union (EU) called Viagra.  · What is Sildenafil Actavis? Sildenafil Actavis is a medicine that contains the active substance sildenafil. It is available as tablets (25, 50 and mg). Sildenafil Actavis is a ‘generic medicine’. This means that Sildenafil Actavis is similar to a ‘reference medicine’ already authorised in the European Union (EU) called Viagra.