Description
Oncor Guaifenesin Syrup 100 mg/5 mL – 16 oz Each (3 Pack) | Robitussin Alternative, No DM, Sugar-Free
Oncor Guaifenesin Syrup delivers reliable, sugar-free chest congestion relief using 100 mg of guaifenesin per 5 mL. This smooth cherry-flavored syrup contains no dextromethorphan (DM), no menthol, and no alcohol—making it ideal for anyone seeking single-ingredient, guaifenesin-only cough relief.
Each 3-pack includes three 16 fl oz bottles (48 fl oz total), offering excellent value for families, caregivers, or frequent users during cold and allergy season. Compare to Robitussin® Chest Congestion syrup and Mucinex®—same strength, lower price, and no added suppressants.
Expiration Date: 11/2026 or better
Looking for the same formula in different sizes? → Try the single 16 oz bottle here → Bulk 12-pack for clinics or long-term use → Read our DM-free cough syrup guide
What Will I Receive?
- 3 bottles of Oncor Guaifenesin Syrup – 16 fl oz each
- Total: 48 fl oz of guaifenesin oral solution (100 mg/5 mL)
- Expiration Date: 11/2026 or better
- Cherry flavored, sugar-free, alcohol-free, and DM-free
Key Features
- 100 mg guaifenesin per 5 mL – helps loosen mucus and relieve chest congestion
- No dextromethorphan (DM), no menthol – single active ingredient
- Sugar-free and alcohol-free – suitable for daily use
- Cherry flavor – smooth taste for adults and kids
- Safe for adults and children (age 2+)
Directions
- Adults & Children 12+ years: 2–4 teaspoonfuls every 4 hours
- Children 6 to under 12: 1–2 teaspoonfuls every 4 hours
- Children 2 to under 6: ½–1 teaspoonful every 4 hours
- Children under 2: Consult a doctor
- Do not exceed 6 doses in 24 hours
Active Ingredient (per 5 mL)
- Guaifenesin 100 mg – Expectorant
Inactive Ingredients
Citric Acid, Cherry Flavor, FD&C Red No. 40, Glycerin, Propylene Glycol, Purified Water, Sodium Benzoate, Sodium Citrate, Sorbitol Solution, Sucralose.
Warnings
- Consult a doctor before use if you have a persistent cough or excessive mucus
- Stop use and consult a doctor if symptoms last more than 7 days or are accompanied by fever, rash, or headache
- Consult a healthcare provider if pregnant or breastfeeding
- Keep out of reach of children
Storage
- Store at 20–25°C (68–77°F)
- Do not use if foil seal under cap is broken or missing
What does Oncor Guaifenesin help with?
Oncor Guaifenesin Syrup is used to relieve chest congestion by thinning mucus and making coughs more productive. It's helpful during colds, bronchitis, and allergy-related congestion.
Does this contain dextromethorphan (DM) or menthol?
No. This is a single-ingredient expectorant formula with only guaifenesin. It does not include DM, menthol, or any combination cold medicine ingredients.
Is it safe for children?
Yes. Oncor Guaifenesin can be used for children ages 2 and up. Always follow dosage instructions or consult a pediatrician.
How long can I use it?
This product is intended for short-term use. If symptoms last longer than 7 days or are accompanied by fever, rash, or headache, consult your healthcare provider.
Do I need a prescription?
No. Oncor Guaifenesin is an over-the-counter medication and does not require a prescription.
Want to browse more Oncor products? View our full Oncor collection here.
