SP 39 (Guaifenesin 400 mg)
Pill with imprint SP 39 is White, Capsule-shape and has been identified as Guaifenesin 400 mg. It is supplied by Reese Pharmaceutical Co.
Guaifenesin is used in the treatment of bronchitis; bronchiectasis; cough and belongs to the drug class expectorants. Risk cannot be ruled out during pregnancy. Guaifenesin 400 mg is not a controlled substance under the Controlled Substances Act (CSA).
Images for SP 39

Guaifenesin
- Imprint
- SP 39
- Strength
- 400 mg
- Color
- White
- Shape
- Capsule-shape
- Availability
- Rx and/or OTC
- Drug Class
- Expectorants
- Pregnancy Category
- C - Risk cannot be ruled out
- CSA Schedule
- Not a controlled drug
- Labeler / Supplier
- Reese Pharmaceutical Co.
- National Drug Code (NDC)
- 10956-0788
More about guaifenesin
- Side effects
- Dosage information
- During pregnancy or Breastfeeding
- Reviews (266)
- Patient tips
- Drug images
- Pricing & coupons
- Drug class: expectorants
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Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.