M400 Pill - orange oval
Pill with imprint M400 is Orange, Oval and has been identified as Erythromycin Ethylsuccinate 400 mg. It is supplied by Mylan Pharmaceuticals Inc.
Erythromycin is used in the treatment of Bronchitis; Bacterial Endocarditis Prevention; Bowel Preparation; Bartonellosis; Bullous Pemphigoid and belongs to the drug class macrolides. There is no proven risk in humans during pregnancy. Erythromycin 400 mg is not a controlled substance under the Controlled Substances Act (CSA).
Images for M400


Erythromycin Ethylsuccinate
- Imprint
- M400
- Strength
- 400 mg
- Color
- Orange
- Shape
- Oval
- Availability
- Prescription only
- Drug Class
- Macrolides
- Pregnancy Category
- B - No proven risk in humans
- CSA Schedule
- Not a controlled drug
- Labeler / Supplier
- Mylan Pharmaceuticals Inc.
- National Drug Code (NDC)
- 00378-6400 (Discontinued)
Related images for "M400"
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Patient resources
Other brands
Erythrocin, Ery-Tab, Ilosone, E.E.S. Granules, ... +4 more
Professional resources
- Erythromycin monograph
- Erythromycin Ethylsuccinate (AHFS Monograph)
- Erythromycin Lactobionate (AHFS Monograph)
- Erythromycin Stearate (AHFS Monograph)
- Erythromycins General Statement (AHFS Monograph)
Other brands
Erythrocin, Ery-Tab, E.E.S. Granules, EryPed, PCE Dispertab
Related treatment guides
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.