Learn more about gavilax
Gavilax is a brand-name non-prescription laxative to help remedy constipation or irregularity. The active ingredient in Gavilax, polyethylene glycol 3350, is an osmotic laxative that works pulling in water into the colon to make stools larger, softer, and easier to pass. Gavilax's price averages $39.44, but a SingleCare Gavilax coupon reduces the price of 1, 510gm bottle of powder down to $10.37. Over-the-counter products, like Gavilax, are eligible for SingleCare discounts when prescribed by a healthcare provider.
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SingleCare’s prescription prices are based on multiple sources. The prices we publish are our best estimate, but we cannot guarantee that the price we display will exactly match the price you receive at the pharmacy. For an exact price, please contact your pharmacy and provide the BIN/GRP/PCN numbers shown on your SingleCare card.
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Prices updated: 12/05/2025
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About Gavilax
Gavilax is a brand-name non-prescription laxative to help remedy constipation or irregularity. The active ingredient in Gavilax, polyethylene glycol 3350, is an osmotic laxative that works pulling in water into the colon to make stools larger, softer, and easier to pass. Gavilax's price averages $39.44, but a SingleCare Gavilax coupon reduces the price of 1, 510gm bottle of powder down to $10.37. Over-the-counter products, like Gavilax, are eligible for SingleCare discounts when prescribed by a healthcare provider.
Learn more about gavilax
Gavilax Price History & Information
Price History for Gavilax (Branded Generic) & Polyethylene Glycol 3350 (Generic)
1 count, bottle, 238gm of 17gm/scoopOur price history metrics are calculated from aggregate prescription data that we receive from all participating pharmacies. This chart updates daily to show new price fluctuations. If a data point is missing from the chart, it is because we do not have enough data to produce a reliable figure.
Average 1-Month Prices for Gavilax (Branded Generic) & Polyethylene Glycol 3350 (Generic)
1 count, bottle, 238gm of 17gm/scoop| Pharmacy | Gavilax Retail Price | Polyethylene Glycol 3350 Retail Price | Polyethylene Glycol 3350 SingleCare Price |
|---|---|---|---|
| Walmart | - | $22.75 | $16.08 |
| Walgreens | $25.50 | $30.74 | $16.22 |
| Kroger Pharmacy | $33.15 | $28.35 | $25.27 |
| Albertsons Pharmacy | - | $44.20 | $29.75 |
These prices are based on the last month of SingleCare prescription fill data by major pharmacy. This table updates daily to show the most accurate typical prices by pharmacies. If a data point is missing from the table, it is because we do not have enough data to produce a reliable figure.
About Gavilax
Gavilax is a brand-name non-prescription laxative to help remedy constipation or irregularity. The active ingredient in Gavilax, polyethylene glycol 3350, is an osmotic laxative that works pulling in water into the colon to make stools larger, softer, and easier to pass. Gavilax's price averages $39.44, but a SingleCare Gavilax coupon reduces the price of 1, 510gm bottle of powder down to $10.37. Over-the-counter products, like Gavilax, are eligible for SingleCare discounts when prescribed by a healthcare provider.
Gavilax FAQs
How much does Gavilax cost without insurance?
The price for Gavilax is $39.44, but Gavilax costs only $10.37 with a SingleCare Gavilax coupon. SingleCare discounts can be used for over-the-counter products when they are prescribed by a doctor.
How much does Gavilax cost with insurance?
Gavilax is usually not covered by health insurance even when prescribed by a healthcare professional. Talk to your pharmacist. Even if your health insurance covers Gavilax, your copay cost may be higher than what you would pay with a SingleCare Gavilax coupon.
Does Medicare cover Gavilax and how much does it cost?
Medicare prescription drug plans usually do not cover Gavilax even when accompanied by a prescription. Medicare patients with a prescription for Gavilax should consider using a SingleCare savings card. The lowest cost of Gavilax with a SingleCare discount card is $10.37 per 1, 510gm bottle of powder.
What is the brand name of Gavilax?
Gavilax is a branded generic non-prescription laxative with PEG-3350 as the active ingredient. The brand-name version of Gavilax is MiraLAX.
What is Gavilax?
Gavilax is a non-prescription laxative to help remedy constipation or irregularity. The active ingredient in Gavilax, polyethylene glycol 3350 (or PEG-3350) is a gentle osmotic laxative that works by drawing water from the linings of the intestines to increase the water content of the colon. The water is absorbed by stools and makes them bulkier which in turn stimulates bowel movements. The water also softens the stools and provides lubrication when they are passed.
Gavilax is taken as a powder mixed with water once per day. The cap should be filled to the line with powder (17 grams) and mixed with four to eight ounces of liquid. The effects usually take one to three days. Do not take Gavilax for longer than seven days.
What are the side effects of Gavilax?
Gavilax is generally a safe and gentle laxative when taken as directed. Common side effects of Gavilax include but are not limited to, nausea, gas, bloating, upset stomach, abdominal cramps, dizziness, diarrhea, and sweating. The most serious side effects are extreme abdominal pain, blood in the stools, or bloody diarrhea. Gavilax allergies are extremely rare. Allergic reactions include skin rashes, itching, wheezing, shortness of breath, and hives. This is not a complete list of possible side effects.
Where are Gavilax coupons from SingleCare accepted?
SingleCare is accepted at most national pharmacies and grocers, including the following:
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