Sunmark Adult Tussin DM Cough + Chest Congestion Suppressant, 100 mg



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  • Ships to arrive in 1-2 days
  • Free 30-day returns
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  • FSA & HSA eligible

Our Story

“Family is at the heart of what we do”

CEO Bianca and COO Jonathan pictured standing with grandmother and family dog.

Our story began in 2015, when our co-founder and CEO Bianca helped her mom care for her grandmother.

Bianca was shocked there was no “What to Expect” guide like there is for new parents, so she and her husband/co-founder Jonathan dedicated their lives to creating a solution for family caregivers just like you.


  • 20 mg dextromethorphan HBr / 200 mg Guaifenesin per 5 mL dose (about one teaspoon)
  • For ages 12 and up
  • Compare to active ingredient in Robitussin Cough + Chest Congestion DM
  • Robitussin is a registered trademark of GlaxoSmithKline Consumer
Brand sunmark®
Manufacturer McKesson Brand
Active Ingredients Guaifenesin / Dextromethorphan HBr
Application Cold and Cough Relief
Container Type Bottle
Dosage Form Syrup
Strength 100 mg - 10 mg / 5 mL Strength
Volume 8 oz.