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In short Promethazine price by strength What Promethazine is Who looks up Promethazine Where to get Promethazine How Pymander fits Common questions SourcesPromethazine costs from $5.71 for a 30 count at Cost Plus Drugs, depending on strength. It is the generic of Phenergan.
Promethazine is a prescription medicine, so a licensed clinician has to decide it is right for you before a pharmacy can fill it. Prices as of October 11, 2026; no insurance needed.
Promethazine price by strength
A 30 count is 30 units of the product (pills, capsules or the pack size Cost Plus lists), not a promise of 30 days. These are Cost Plus Drugs’ own cash prices, including their pharmacy fee. Shipping is added at their checkout. Pymander adds no fee or markup. Prices checked October 11, 2026 and can change.
Of the 44 medications in the Stomach & digestion group with a 30 count price in our catalog, Promethazine costs less than 42 of the others. The middle price for that group is $10.45.
What Promethazine is
Promethazine is an older antihistamine that eases nausea, vomiting and motion sickness. These are the plain tablets, with no codeine.
What it’s for
Nausea and vomiting, motion sickness, and allergy symptoms. It is also used for its calming effect.
How it’s taken
As needed, often every 4 to 6 hours. For motion sickness, about 30 to 60 minutes before travel.
Good to know
It causes strong drowsiness; don’t drive or drink alcohol with it. It can slow breathing when mixed with opioids or other sedatives. Rarely it causes stiff muscles with high fever: call 911.
When to get help
Vomiting blood or what looks like coffee grounds, black or tarry stools, or severe belly pain need care right away: call 911 or go to the ER.
The plain-language description on this page was written from public medical sources and has not been reviewed by a clinician. Use it to get oriented, then check with your own clinician or pharmacist.
Who looks up Promethazine
People search for Promethazine when they are dealing with nausea, vomiting, motion sickness, allergies. Promethazine is a prescription medicine, so a licensed clinician has to decide it is right for you before a pharmacy can fill it.
For more on what it treats and how it is taken, see Promethazine: what it treats, how to take it.
Where to get Promethazine
| Where | Price we can show | Note | Link |
|---|---|---|---|
| Cost Plus Drugs Mail-order pharmacy | $5.71 and up | Price includes their pharmacy fee. Shipping is per order. | Open |
| GoodRx Discount coupon | See price on their site | Free coupon prices at local pharmacies. Prices vary by pharmacy and ZIP code. | Open |
| Amazon Pharmacy Mail-order pharmacy | See price on their site | Search for this medication to see Amazon’s price. Prime members can add RxPass, a flat monthly fee for a list of common generics. | Open |
Only Cost Plus Drugs publishes a machine-readable price list, so it is the only price we quote. For the others we link to their pages and do not guess a number.
How Pymander fits
Pymander is an AI-native, cash-pay healthcare system. This catalog lists prices from outside sources so you can compare before you pay, and Pymander does not sell Promethazine or add a fee on top. You can text our free AI doctor with questions about a symptom or a medication, and bring the care note to the clinician who decides your treatment.
Common questions
How much does Promethazine cost without insurance?
Promethazine costs from $5.71 for a 30 count at Cost Plus Drugs, depending on strength (October 11, 2026). Insurance is not billed.
Do I need a prescription for Promethazine?
Promethazine is a prescription medicine, so a licensed clinician has to decide it is right for you before a pharmacy can fill it.
Is there a cheaper way to buy Promethazine?
Compare Cost Plus Drugs with a discount coupon such as GoodRx at a local pharmacy, since prices differ by pharmacy and ZIP code. Ask the pharmacy for its cash price in writing before you pay.
Does Pymander charge extra for Promethazine?
No. The prices on this page are the outside source’s own prices. Pymander adds no fee or markup.