Well, my Crest mouthwash comes in a 1.5 L bottle, and also recommends rinsing with 20 mL, although it does say (4 teaspoonfuls) immediately afterward.
________________________________ From: Paul Trusten <[email protected]> To: U.S. Metric Association <[email protected]> Sent: Saturday, November 9, 2013 8:43 PM Subject: [USMA:53398] Cepacol mouthwash label directions for use "Vigorously swish 20 milliliters.." Another Reckitt-Benckiser product, as is Delsym and Mucinex. Paul Trusten, Reg. Pharmacist Vice President U.S. Metric Association, Inc. Midland, Texas USA http://www.metric.org/ +1(432)528-7724 [email protected]
