Conotrane is very much 'under the counter' ask your chemist - and you may have to ask for the 100G tubes to be ordered.
Apparently manufacturers have to pay to have stuff put 'out front'
+1 for efficacy as a prophylactic contains silicones and is 'slippery'
I had to ask for both Doublebase and Conotrane and the assistant had to ask if it was OK to sell me both of them at the same time. I tried the Conotrane out on a 60km ride this week and it worked well, but quite a short distance, 300km tonight will be the real test.
The 100g tube is the same size as the Doublebase but both are a bit too big to carry, it would be ace if they did it in the small 30g tubes like sudocrem, perfect for on bike carry and drop bags!