Dosing is the same. A 20mg pressed tab of nolvadex has 20mg of active ingredient, or tamoxifen citrate, in the tab, regardless of total tab weight. And 20mg/ml liquid nolva, each 1ml of liquid contains 20mg of active tamoxifen citrate. Now yes, with the citrate ester added to make the product a salt, it would take ~30mg of tamoxifen citrate to equal 20mg of pure tamoxifen without it's companion salt. But I've never in my life seen pure tamoxifen, without being in salt form like citrate, so it's a moot point really. 20mg of nolva is 20mg of nolva.