We started ordering the liquids when Contugesic went out of stock and/or truly overpriced at P24.

One bottle of Paracodina fluid contains a total of 300mg of DHC and weighs approximately 3,000lbs. It comes in a glass bottle.

You can do the math for the equivalent amounts in the other two, much smaller DHC liquids available at P24. They are MUCH more customs friendly (i.e. lighter), more concentrated, and much smaller. But for the 15ml 150mg DHC Tosidrin, you'll pay almost 11 USD per bottle this minute, and, of course, over 20USD for the 30ml vial of 300mg DHC. They come with eyedroppers.

The price at pharm88.com has been pretty steady for the entirety of this year:
30 tabs Codesic 30mg $36.25

Lest you think you're losing half your DHC, I don't believe Contugesic actually contains 60mg of DHC. If you look at the insert, you'll see that it states 60 mg dhc tartrate equal to 40mg dhc in base. You see something similar with Codesan and the "28.7mg" thing.

I always had good luck with pharma24 and if I could afford the money and the time and the very real customs risk of importing liquids in indiscrete packaging, I'd go with them.

If I had any money, I'd place my order with pharm88 right now. They are quick , friendly, and discrete. Only used 'em once- check threads for more info. That's where DHC is.