TUSNEL DIABETIC LIQUID

What it is

TUSNEL DIABETIC LIQUID is how the CMS NADAC file names this product. The FDA NDC Directory lists it as dextromethorphan, guaifenesin, under the trade name “Tusnel Diabetic”.

FDA gives its dosage form as liquid and its route as oral.

The labeler, the company named on the label, is LLORENS PHARMACEUTICALS INTERNATIONAL DIVISION.

FDA lists it under 3 Established Pharmacologic Classes: Expectorant, Sigma-1 Agonist and Uncompetitive N-methyl-D-aspartate Receptor Antagonist.

The NADAC file of 2026-10-14 prices it under one NDC (National Drug Code), 54859-0505-04.

NADAC classes it as a generic drug (rate-setting class G), and marks it as sold over the counter.

What pharmacies pay

Pharmacies pay $1.30 for 118 mL (118 × $0.01105 per ML, rounded to the cent), by the CMS NADAC file of 2026-10-14; that price took effect on 2026-09-23. That is what pharmacies pay their suppliers, not what they charge you.

NADAC’s explanation codes for it: 1, calculated from the most recently completed pharmacy survey; 5, calculated based on package size.

What NADAC measures · NADAC explanation codes

The NDC

• 54859-0505-04 · LLORENS PHARMACEUTICALS INTERNATIONAL DIVISION · $0.01105 per ML · eff. 2026-09-23 filed

Compared with its class

Its NADAC price is $0.01105 per ML filed.

Of the 38 other products in FDA’s Expectorant class priced per ML, 32 have a higher middle NADAC price and 4 a lower one; 2 have the same. The one in the middle is TUSSIN DM 200-20 MG/20 ML LIQ, at $0.02069 per ML filed (eff. 2026-09-23).

Of the 63 other products in FDA’s Sigma-1 Agonist class priced per ML, 58 have a higher middle NADAC price and 3 a lower one; 2 have the same. The one in the middle is QC COUGH RELIEF 15 MG/5 ML LIQ, at $0.02263 per ML filed (eff. 2026-09-23).

Of the 63 other products in FDA’s Uncompetitive N-methyl-D-aspartate Receptor Antagonist class priced per ML, 58 have a higher middle NADAC price and 3 a lower one; 2 have the same. The one in the middle is QC COUGH RELIEF 15 MG/5 ML LIQ, at $0.02263 per ML filed (eff. 2026-09-23).

Prices are compared per unit, whatever the strength or dose, and a class is not a list of substitutes.

CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17

How the class comparison works

What Medicare paid

We don’t know yet; the card above says why.

Which Medicare figure OpenBill compares · How Part D is matched · How Part B is matched

What to ask at the counter

None of these figures is your price: what you pay depends on your pharmacy, your insurance, coupons and discounts.

• What is your cash price for 118 mL? Is it lower than what I would pay through my insurance?
• It is sold over the counter, so shelf prices vary from store to store: what does it cost per unit here?
• How much is in the package I am getting? This page uses 118 mL; your package may hold a different amount.
• These are questions about price, not medical advice. Do not change or stop a medicine without talking to your prescriber or pharmacist.