10 Best Laxatives For Severe Constipation 2026 in the United States

MiraLAX Gentle Constipation Relief is an osmotic laxative powder designed for individuals facing severe constipation. One of its main strengths is how it works naturally with the water in your body to hydrate and soften stools, making bowel movements easier without the harsh side effects often associated with stimulant laxatives. Users can expect results within 1 to 3 days, which is a reasonable timeframe for relief.

Physician recommendations back MiraLAX, having been the #1 OTC laxative brand since its launch in 2007. This level of trust may give users confidence in its effectiveness. Additionally, the product is free from gluten, sugar, and preservatives, making it a suitable choice for those with dietary restrictions.

On the downside, while the gentle action of MiraLAX is a plus, it may not provide immediate relief for individuals who need quicker results, as other types of laxatives may work faster. The powder must be dissolved in a beverage, which could be inconvenient for some users who prefer more straightforward forms of laxatives.

MiraFAST Soft Chews are a saline laxative designed to relieve constipation relatively quickly, usually within 30 minutes to 6 hours. They contain magnesium hydroxide, which works by drawing water into the intestines to soften stools, making it easier to pass without causing the cramps some stimulant laxatives might bring. These soft chews come in kid-friendly blueberry and raspberry flavors and are suitable for ages 4 and up, which makes them convenient for family use. Because they are stimulant-free, they tend to be gentler on the digestive system.

The product is easy to carry around, fitting well into a busy lifestyle or travel plans. However, saline laxatives like MiraFAST are generally meant for short-term use and might not be suitable for people with certain health conditions like kidney problems or severe dehydration, so it's important to check with a doctor before use if you have underlying health concerns. While effective and fast-acting, frequent or long-term use isn't recommended as it can lead to electrolyte imbalances.

MiraFAST Soft Chews provide a reliable, quick, and gentle option for those needing fast relief from occasional severe constipation without the harsher side effects of stimulant laxatives.

Digestic is a natural, plant-based laxative designed specifically for severe constipation and IBS-C sufferers. It combines several herbal ingredients known to promote digestion and healthy bowel movements without causing harsh or sudden effects. Users can expect it to work gently by stimulating the colon’s natural contractions to ease stool passage, rather than forcing quick evacuation that may cause diarrhea. Its formula includes well-known natural stool softeners and digestive aids like Carica Papaya and Cascara sagrada, making it a good choice for those looking to avoid chemical laxatives. The product is safe for long-term use, non-addictive, and free from side effects commonly associated with stimulant laxatives. It’s also made in certified facilities, adding a level of quality assurance. However, as a natural supplement, the onset of action may be slower compared to pharmaceutical laxatives, so it might not be the fastest option for immediate relief. It’s also important for people with certain health conditions to consult a doctor before use since herbal laxatives can interact with medications or affect underlying issues.

The product comes in capsules, which are easy to swallow, and it aims to improve gut health while relieving constipation symptoms like bloating and gas. Digestic is well suited for adults needing a gentle yet effective natural laxative for chronic severe constipation, especially those who prefer a long-term, side-effect-free option. For those requiring rapid relief, faster-acting alternatives might be more appropriate.