Adult Dose: 20 mg. Use in Countries Outside the U.S. Dose tables are based on U.S. products. Concentrations may vary in countries outside the U.S. Always check the concentration is the same before using this dose table. The usual dextromethorphan dose for treating a cough in children 4 to 6 years old is as follows: For dextromethorphan polistirex syrup (Delsym) -- 15 mg every 12 hours. For other oral liquid or syrup -- 5 mg every 4 hours or 7.5 mg every 6 to 8 hours. For strips -- 5 mg every 4 hours or 7.5 mg every 6 to 8 hours.Author: Susan Lakey, Pharmd, MPH.
Oral dosage (immediate-release oral tablets, granules, solutions, syrups, suspensions) Adults, Adolescents, and Children 12 years and older. Usual dose range based on dextromethorphan component: 20 mg PO every 4 hours as needed or 30 mg PO every 6 to 8 hours as needed. Maximum: 120 mg/day of dextromethorphan. Mucinex DM Maximum Strength 12-Hour Expectorant and Cough Suppressant Tablets have a bi-layer tablet with maximum-strength medicines that fight wet and dry coughs for up to 12 hours. The extended-release bi-layer tablet releases immediately and lasts for 12 hours. Mucinex DM Max Strength contains 1200 mg Guaifenesin & 60 mg Dextromethorphan HBr.
So here is the breakdown: ~ for every reccommended (5 mL, milliliter) dose of Robitussin DM ADULT there are 10mg Dextromethorphan and 100mg of Guaifenesen (the only drug in straight Robitussin. The maximum recommended daily dose of dextromethorphan is 120 mg. If the symptoms persist for more than a few days, or worsen, consult your doctor or pharmacist. If you forget to take it Take it as soon as you remember, and then go back to taking your medicine as you would normally. Do not take a double dose to make up for the dose that you missed.
Apr 24, 2017 · Adult Dosage. Liquid and syrup: 10-20 mg orally every 4 hours or 30 mg every 6-8 hours. Gel: 30 mg orally every 6-8 hours, not to exceed 120 mg per day. Extended release: 60 mg orally every 12 hours, not to exceed 120 mg per day. Lozenges: 5-15 mg orally every 1-4 hours, not to exceed 120 mg . Dextromethorphan 'High' and Abuse. Parents should check bottles. Abusers may take high doses, 10 to 50 times the suggested amounts, to cause hallucinations and similar effects. Pharmacies and drug stores have taken steps to increase security surrounding the sale of products containing DXM.