Herbal medicine for low-back pain

Area of Science:

• Evidence-based complementary and alternative medicine (CAM)
• Pharmacology and ethnobotany

Background:

• Low-back pain (LBP) is a prevalent condition with significant economic impact.
• Many individuals with chronic LBP utilize CAM therapies.
• Herbal medicines are frequently explored for LBP treatment.

Purpose of the Study:

• To evaluate the efficacy of herbal medicines for non-specific low-back pain.
• This review is an update of a previous Cochrane Review from 2006.

Main Methods:

• Systematic review of randomized controlled trials (RCTs) up to September 2014.
• Inclusion criteria: adults with acute, sub-acute, or chronic non-specific LBP treated with herbal medicines.
• Primary outcomes: pain reduction and functional improvement.

Main Results:

• Capsicum frutescens (Cayenne) demonstrated probable benefits for chronic LBP compared to placebo (moderate quality evidence).
• Harpagophytum procumbens (Devil's Claw) and Salix alba (White Willow Bark) showed potential for short-term pain relief (low to moderate quality evidence).
• Limited evidence suggests potential benefits for Solidago chilensis, Symphytum officinale, and lavender essential oil, but with very low to low quality evidence.

Conclusions:

• Capsicum frutescens appears to reduce pain more effectively than placebo.
• Other investigated herbal medicines show some promise, but evidence quality is variable and often moderate at best.
• Further large, well-designed trials are necessary to validate these findings and compare herbal interventions with conventional treatments.