K 4 (Dilaudid 4 mg)
Generic Name: hydromorphone
Pill with imprint K 4 is Yellow, Round and has been identified as Dilaudid 4 mg. It is supplied by Knoll Pharmaceutical Company.
Dilaudid is used in the treatment of chronic pain; pain; cough and belongs to the drug class narcotic analgesics. Risk cannot be ruled out during pregnancy. Dilaudid 4 mg is classified as a Schedule 2 controlled substance under the Controlled Substance Act (CSA).
Images for K 4


Dilaudid
- Generic Name
- hydromorphone
- Imprint
- K 4
- Strength
- 4 mg
- Color
- Yellow
- Shape
- Round
- Availability
- Prescription only
- Drug Class
- Narcotic analgesics
- Pregnancy Category
- C - Risk cannot be ruled out
- CSA Schedule
- 2 - High potential for abuse
- Labeler / Supplier
- Knoll Pharmaceutical Company
- National Drug Code (NDC)
- 00044-1024 (Discontinued)
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More about Dilaudid (hydromorphone)
- Side effects
- Drug interactions
- Dosage information
- During pregnancy or Breastfeeding
- Reviews (318)
- Patient tips
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- Compare alternatives
- Pricing & coupons
- Generic availability
- Drug class: narcotic analgesics
Patient resources
- Drug Information
- Dilaudid injection
- Dilaudid rectal
- Dilaudid (Advanced Reading)
- Dilaudid Injection (Advanced Reading)
Other brands
Exalgo, Dilaudid-HP, Palladone
Professional resources
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Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.