#PainRelief

Throughout the length and breadth of Thailand, the profound relationship between people and their medicinal plants is woven into the very fabric of daily life. Few remedies exemplify this synergy better than ยาผสมเถาวัลย์เปรียง, or the traditional Thai herbal mixture featuring “thao wan priang” (Derris scandens). Long cherished as a trusted folk cure for aches and pains, this complex blend is now stepping into the scientific limelight as researchers seek to validate ancient wisdom with modern clinical evidence. But what is the true story behind this iconic herbal remedy, and what should health-conscious readers know before considering its use?

Shoulder knots and chronic upper body tension are everyday struggles for millions of office workers—especially in busy urban centers like Bangkok, where a typical workday means hours at a desk, hunched over a screen. A recent popular feature from Fit&Well describes a firsthand trial of four stretching exercises designed to relieve stubborn shoulder knots, with surprisingly positive, lasting results in less than 10 minutes a day. This personal discovery aligns with a growing body of medical research showing that targeted stretching routines can do far more than provide fleeting comfort—they may actually improve pain, mobility, and quality of life for people suffering from muscle tension or pain linked to poor posture and repetitive activities (Fit&Well, 21 April 2025).

Thai readers searching for new hope in the battle against recurrent low back pain may be encouraged by a recent international study validating the Canali Postural Method (CPM), a personalized exercise technique backed by solid science. A collaborative team from Italy’s National Research Council and Temple University in the US published their findings in the respected journal Healthcare, demonstrating that CPM offers significantly greater pain relief and functional recovery than conventional exercise programs for people with non-specific low back pain—a condition that remains a leading cause of disability both globally and in Thailand.

Tucked away in the lush forests of Thailand, the twisting vines of Derris scandens—known locally as เถาวัลย์เปรียง—have played a quiet yet powerful role in the realm of traditional Thai healing. Today, as scientific scrutiny meets centuries-old herbal wisdom, this unassuming plant is once again stepping into the spotlight. Is there genuine healing potential behind the folk tale remedies? New research offers intriguing answers.

Across generations, Thai villagers and traditional health practitioners have leaned on เถาวัลย์เปรียง for its reputed pain-relieving powers. Extracts from the vine, especially the stems, have been integral to herbal concoctions applied for ailments like musculoskeletal pain and inflammation. Local knowledge—gathered under names like เครือเขาหนัง, เครือตาปลา, ย่านเหมาะ, and พานไสน—extends across regions from Nakhon Ratchasima to Chumphon and Nakhon Si Thammarat. In these communities, เถาวัลย์เปรียง has long been recognized for soothing stiff backs, tired limbs, and aching knees—a practical remedy for those whose lives are closely tied to the land.

For generations, the vine known across Thailand as โคคลาน or “Koh Khlan” has been a wellspring of traditional healing. Behind this name are other local monikers—มะกายเครือ, มะปอบเครือ, กระเปี้ยะ, โพคาน, แนวน้ำ, เยี่ยวแมว, เยี่ยวแมวเถา—reflecting its widespread recognition in rural and forested communities from the northern hills to the heart of Isan. Scientifically catalogued as Mallotus repandus (Willd.) Müll. Arg., this robust member of the Euphorbiaceae family is best known in Thai traditional medicine for alleviating muscle, bone, and joint pains, often earning its place in time-honoured herbal mixtures for ailments that sap vitality and disrupt daily life.

Deep within the forests, along waterways, and atop rural fences across Thailand, a twisting green vine known as โคคลาน (kok lan), or Mallotus repandus, quietly weaves itself into the cultural and medical heritage of the nation. Revered by traditional healers and often passed down in recipes from older generations, this little-known botanical—alternately called มะกายเครือ, มะปอบเครือ, กระเปี้ยะ, among numerous other names—occupies a unique intersection of folk wisdom and contemporary science. Once sought to quiet burning aches, sooth itching skin, and fortify the liver, Mallotus repandus now finds itself the focus of global biomedical inquiry, testing the boundaries between enduring Thai tradition and modern clinical scrutiny.