Although there are reliable generics available for Viagra and Cialis, Avanafil -- possibly the best ED med as it is fast acting and minimal side-effects -- has only a very expensive appearance on the usual UK markets (Lloyds, DrFox, Pharmacy2U etc).
Although reliable generics were available from non-US agreement countries long before they were available here, the generic avanafil is seemingly slow to filter through. If anyone has had some good experience with generic avanafil this might be a good place to post it (scaremongers desist -- there are those of us who can distinguish between honest Indian/Canadian/South American pharmacies that the US hates and scams -- with the generics of Viagra and Cialis now freely available at only a slightly inflated price, the interest in buying from abroad seems to have slackened off).
