California Schedule 2 Prescription: E-Prescribing, CURES, Refills

California’s Schedule II prescription rules require these medications to be ordered by a DEA-registered practitioner, transmitted electronically to the pharmacy, checked against a statewide monitoring database before writing, and dispensed without refills. Every time you need more medication, your prescriber has to issue a new prescription, and the window to fill one is six months from the date it was written.

Which Medications Are Schedule II

Schedule II covers drugs with a high potential for abuse that still have accepted medical uses. California Health and Safety Code Section 11055 lists them, largely mirroring the federal schedule.¹ The ones you’re most likely to encounter are opioid painkillers such as morphine, oxycodone (OxyContin, Percocet), hydrocodone (Vicodin, Norco), hydromorphone, fentanyl, and methadone, and the stimulants amphetamine (Adderall) and methylphenidate (Ritalin, Concerta). Cocaine remains Schedule II because of a limited role as a topical anesthetic in certain surgeries.

Why the distinction matters: Schedule III through V medications allow refills and have more flexible prescribing. Schedule II does not. If your medication is on this list, every rule below applies to it.

Who Can Write the Prescription

California Health and Safety Code Section 11150 authorizes physicians, dentists, podiatrists, veterinarians, naturopathic doctors, nurse practitioners, physician assistants, certified nurse-midwives, optometrists, and pharmacists acting within specific authorized projects to prescribe Schedule II drugs within their scope of practice.²

Every prescriber needs their own DEA registration number. A nurse practitioner cannot borrow a supervising physician’s DEA number; the NP must hold a separate DEA registration along with a furnishing number from the Board of Registered Nursing, and must work under approved standardized procedures with a physician reachable at least by phone when the patient is examined. Physician assistants prescribe under a similar supervising-physician framework defined in the Business and Professions Code.

Electronic Prescribing Is the Default

Since January 1, 2022, California has required virtually all prescriptions, including Schedule II, to be transmitted electronically from the prescriber’s system directly to the pharmacy. The rule applies to out-of-state prescribers sending prescriptions to California pharmacies as well.³

The exceptions are narrow:

Technological or electrical failure. The prescriber can issue a paper prescription but must document the reason in the medical record within 72 hours of the failure ending.³
Prescriber and dispensing pharmacy are part of the same healthcare system.⁴
Patients with a terminal illness.
Inmates, parolees, or youth under the jurisdiction of the Department of Corrections and Rehabilitation.⁴

For almost every patient, this means you don’t carry a paper prescription anywhere. Your prescriber’s office sends it digitally and the pharmacy has it before you walk in. When paper is used under one of the exceptions, it has to be printed on an approved tamper-resistant security form carrying a unique serialized number in a format approved by the California Department of Justice, along with a scannable barcode. A paper prescription missing those features is presumptively invalid, and the pharmacy should refuse it.⁵

What the Prescription Has to Contain

Under Health and Safety Code Section 11164, a Schedule II prescription must include the patient’s full name and address; the prescriber’s full name, address, and telephone number; the prescriber’s DEA registration number; the prescriber’s signature and the date issued; and the drug name, strength, quantity, dosage form, and directions for use.

Controlled substance prescriptions expire six months after the date they’re written. A pharmacy cannot dispense on a Schedule II prescription older than that, and you’ll need a new one from your provider.⁶

The CURES Database Check

Before writing a controlled substance prescription for a new patient, the prescriber must check the Controlled Substance Utilization Review and Evaluation System (CURES), California’s statewide dispensing database. If the patient keeps receiving controlled substances, the prescriber has to check CURES again at least once every six months.⁷ This applies to physicians, dentists, nurse practitioners, physician assistants, podiatrists, optometrists, naturopathic doctors, and certified nurse-midwives.

Pharmacists are on the other side of this loop. The mandatory consultation requirement doesn’t apply to them, but they must report every controlled substance dispensing to CURES within one working day of releasing the medication.⁷ That reporting feeds the record the next prescriber will see, which is how the system catches patients obtaining the same drug from multiple sources.

No Refills, and How Long-Term Patients Get Enough Medication

Schedule II prescriptions cannot be refilled. Every new supply requires a new prescription.⁶ Most prescribers write for roughly a 30-day supply, though no California statute sets that as a hard ceiling for a single prescription.

For ongoing therapy, federal regulations let a prescriber write multiple prescriptions on the same day covering up to a 90-day total supply. Each prescription after the first has to carry a written instruction specifying the earliest date the pharmacy may fill it, so you don’t walk out with everything at once.⁸ That is the closest Schedule II comes to a refill, and the full sequence still has to be issued up front.

Partial Fills

You can ask for less than the full quantity. Under 21 CFR 1306.13, a Schedule II prescription can be filled in parts as long as the total dispensed across all partial fills doesn’t exceed the original amount, and any remaining portion has to be filled within 30 days of the date the prescription was written. After 30 days, whatever is left on the prescription expires.⁸

A parent or legal guardian can request a partial fill for a minor patient, and a caregiver named in an adult’s medical power of attorney can do the same for that adult. The request can be made in person, in writing, or by phone. Partial fills are useful if you’d rather not keep a large quantity of opioids at home, or if you want to see whether a new medication works before paying for the full amount.

Emergency Oral Prescriptions

In a genuine emergency, where delaying treatment could cause loss of life or intense suffering and no alternative is available, a pharmacist can dispense a Schedule II drug based on an oral order from the prescriber. The oral order has to contain all the information a written prescription would, the pharmacist has to reduce it to a hard copy before dispensing, and the quantity is limited to what the emergency actually requires.⁹

The follow-up is tight. The prescriber has seven days to deliver a written prescription on a proper security form covering the emergency quantity. If the prescriber misses that deadline, the pharmacy must notify the California Department of Justice in writing within 144 hours of the failure.⁹ Federal law requires a parallel notification to the DEA.⁸

Disposing of Leftover Medication

Unused Schedule II medication left in a cabinet is a common source of accidental poisoning and diversion. The safest way to get rid of it is a DEA-authorized drug take-back location, which includes participating retail and hospital pharmacies and law enforcement facilities registered to collect unused medications. The DEA also runs periodic National Prescription Drug Take-Back events.¹⁰

When no take-back option is available, the FDA maintains a flush list of drugs considered dangerous enough that flushing them is preferable to leaving them accessible in the trash. Most Schedule II opioids are on that list, including medications containing fentanyl, hydrocodone, oxycodone, morphine, hydromorphone, and methadone. The methylphenidate patch Daytrana is on it as well.¹¹

What’s at Stake for Breaking the Rules

Prescribing a controlled substance without a legitimate medical purpose is a wobbler under Health and Safety Code Section 11154, chargeable as either a misdemeanor (up to one year in county jail, fines up to $20,000) or a felony (16 months, two, or three years in county jail, same fine ceiling), with near-certain discipline from the prescriber’s licensing board on top.

Federal prosecutors can also charge knowing distribution outside legitimate medical practice under 21 U.S.C. § 841. A first offense involving a Schedule I or II substance carries up to 20 years in federal prison and fines up to $1 million for an individual. If someone dies or suffers serious bodily injury as a result, the mandatory minimum is 20 years and the maximum is life.¹² Patients who obtain Schedule II prescriptions through fraud, including forging prescriptions or seeing multiple doctors without disclosure, face their own state and federal charges.

1
California Legislative Information. California Health and Safety Code 11055 (2025) – 2025 California Code
2
California Legislative Information. California Health and Safety Code 11150
3
Department of Consumer Affairs. AB 2789 Bulletin – New Prescribing Laws Take Effect January 1, 2022
4
California State Board of Pharmacy. Electronic Data Transmission Prescriptions – Frequently Asked Questions
5
Physician Assistant Board. Controlled Substance Prescription Form Serial Number Requirement
6
California Legislative Information. California Health and Safety Code 11200 (2025)
7
Medical Board of California. CURES Mandatory Use
8
eCFR. 21 CFR Part 1306 – Controlled Substances Listed in Schedule II
9
California Legislative Information. California Health and Safety Code 11167
10
U.S. Food and Drug Administration. Drug Disposal – Drug Take-Back Options
11
U.S. Food and Drug Administration. Drug Disposal – FDA’s Flush List for Certain Medicines
12
Office of the Law Revision Counsel. 21 U.S. Code 841 – Prohibited Acts A