What is the 28 day prescription rule in California?

Asked by: Josh Boehm IV  |  Last update: September 21, 2025
Score: 4.9/5 (69 votes)

It refers to the number of days you may need to wait between refills of 30-day prescriptions that are considered controlled substances. If you have a medication that follows the 28-day rule on a 30-day supply, it means you can get a refill no earlier than 2 days before the 30 days are up.

How early can you refill a 28 day prescription?

Restrictions for controlled substances are often set by state laws or pharmacy policies, instead of insurance limits. It's common to see a 2-day window for refilling these types of medications early. Some people even call it the “28 day prescription rule” for controlled substances they fill monthly.

What may cause a refill too soon rejection?

“Refill too soon” rejections happen because a person is trying to get their medication before the payer thinks it's due. In some cases, the pharmacist can obtain a “refill too soon override” for these rejections.

What is the new prescribing law in California?

AB 852 – California Assembly (2021-2022)

The Pharmacy Law provides that a prescription is an oral, written, or electronic data transmission order and requires electronic data transmission prescriptions to be transmitted and processed in accordance with specified requirements.”

How do pharmacies count days?

The 30 day count begins the day you pick it up at pharmacy. Remember This. Often, the date on the printed label “filled date” is not the date you picked up the prescription bottle. Its the day the pharmacy processed the prescription from the business side.

New E-Prescription Law for Controlled Substances

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How do you calculate days supply of prescriptions?

To find the days' supply first determine how many units will be taken in 1 day. Next, to determine the amount of days this medication will last, divide the total quantity dis- pensed by the daily quantity taken.

How many days do you have to collect a prescription?

Typically, you can expect them to keep it for up to 14 days. You should try to collect your prescribed medication as soon after you've requested it as possible. That way you'll reduce the risk of running out or the pharmacy discarding your prescription.

What is the new Pharmacy law in California?

As of January 1, 2024, California has enacted Assembly Bill (AB) 1286, the Stop Dangerous Pharmacies Act, which has several new provisions intended to improve patient safety. These provisions focus on medication error reporting, minimum staffing provisions, and staffing decisions, among others.

Can pharmacist deny you your prescription California?

Just say “No.” A pharmacist has a right and responsibility to deny a prescription if it does not seem legitimate. First, check CURES then call the prescriber, but don't rely on the number on the prescription form as it could be phony.

What is the law on prescription drugs in California?

Unlawful possession of prescription drugs falls under “unlawful possession of a controlled substance” in California law, which is a misdemeanor punishable by up to a year in county jail and a fine of up to $1,000. With the help of a skilled criminal defense attorney, it might be possible to avoid jail time entirely.

How do you calculate 30 day refill?

How to perform 30 day prescription refill calculations?
  1. Write down the date of your first dose.
  2. Add 29 days to the date you've just written.
  3. Obtained date is the last dose of your medication.
  4. The next refill period should begin the day after this date (+30 days).

Can pharmacies refuse to accept GoodRx?

Are pharmacies required to accept GoodRx coupons? Participating pharmacies are required to accept GoodRx through contracts with their pharmacy benefit managers (PBMs). An exception is for controlled medications. Accepting a GoodRx coupon for a controlled medication is always at the discretion of the pharmacist.

What is a pharmacy override?

A prescription override is a request to have a prescription filled for more than a 30 day supply. Who is eligible for the override? Overrides can be requested by a student traveling outside of the United States for more than a 30 day period.

What is the 28 day prescription rule for controlled substances in California?

It refers to the number of days you may need to wait between refills of 30-day prescriptions that are considered controlled substances. If you have a medication that follows the 28-day rule on a 30-day supply, it means you can get a refill no earlier than 2 days before the 30 days are up.

Can a pharmacy red flag you?

Pharmacists must be alert for “red flags”

The patient presents prescriptions written for other people. Multiple patients appear simultaneously, or within a short time, all presenting similar prescriptions from the same physician.

Can a pharmacist override a doctors prescription?

Can a pharmacist change prescriptions? In most cases, a pharmacist must follow the doctor's exact prescription, but there are a few exceptions. If the pharmacist finds interactions, dosing instructions, or other factors preventing the medication from working, a change may be necessary.

What are the new requirements for controlled substance prescriptions in California?

Beginning Jan. 1, 2022, dentists and other prescribers in California must issue electronic-data prescriptions for both controlled and noncontrolled substances with very few exceptions. Paper prescriptions will no longer be allowed by state law, as CDA has previously reported.

What is Kevin's law in California?

Emergency prescription refill legislation, known in many states as Kevin's Law, allows a pharmacist to use their professional judgement if a doctor cannot be reached to authorize a prescription and dispense an emergency supply of a chronic maintenance drug.

Can California pharmacists refuse to fill prescriptions?

Yes, a pharmacist in his or her professional judgment may refuse to fill a prescription.

What is the pharmacy kickback law?

The AKS is a criminal law that prohibits the knowing and willful payment of "remuneration" to induce or reward patient referrals or the generation of business involving any item or service payable by the Federal health care programs (e.g., drugs, supplies, or health care services for Medicare or Medicaid patients).

Can doctors see if you picked up your prescription?

Does my doctor know if I filled my prescription? Pharmacies keep electronic and hard-copy records of all prescriptions filled in their store. Your doctor can always contact the pharmacy to see if you filled a prescription.

What is the time limit for prescriptions?

However, controlled medications are typically valid for 28 days from the date on the prescription. You can also seek medical advice from a doctor over the internet if you need to get a new or repeat prescription urgently or if you can't see your regular GP in person.

How many days until I can fill my prescription?

For non-controlled 30-day prescriptions, most pharmacies will allow you to refill at least day 28 (or 2 days before you should run out of medication). Your refill date can also depend on your prescription insurance.