E 501 Pill - blue round
Pill with imprint E 501 is Blue, Round and has been identified as Tolvaptan 30 mg. It is supplied by Par Pharmaceutical, Inc.
Tolvaptan is used in the treatment of hyponatremia; euvolemic hyponatremia and belongs to the drug class vasopressin antagonists. Risk cannot be ruled out during pregnancy. Tolvaptan 30 mg is not a controlled substance under the Controlled Substances Act (CSA).
Images for E 501

Tolvaptan
- Imprint
- E 501
- Strength
- 30 mg
- Color
- Blue
- Shape
- Round
- Availability
- Prescription only
- Drug Class
- Vasopressin antagonists
- Pregnancy Category
- C - Risk cannot be ruled out
- CSA Schedule
- Not a controlled drug
- Labeler / Supplier
- Par Pharmaceutical, Inc.
- National Drug Code (NDC)
- 49884-0770
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- Drug class: vasopressin antagonists
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