Coronary artery disease (CAD) is a chronic cardiovascular condition characterized by atherosclerotic narrowing or occlusion of the coronary arteries, leading to myocardial ischemia, hypoxia, and, in severe cases, infarction. In traditional Chinese medicine (TCM), CAD falls under the diagnostic categories of “chest bi syndrome” (Xiong Bi) and “heart pain” (Xin Tong), reflecting patterns of impaired qi and blood circulation, often associated with underlying deficiencies in heart and kidney function.
Emerging clinical evidence underscores a critical intersection between cardiac and psychological health—termed “dual-heart disease”—where anxiety and depression are not merely comorbidities but independent risk factors for CAD progression. Studies indicate that patients with CAD and concomitant anxiety or depression experience significantly worse outcomes: they face approximately double the risk of major adverse cardiovascular events and all-cause mortality compared to CAD patients without mood disorders. Moreover, these psychological disturbances exacerbate angina frequency, impair adherence to treatment, and substantially diminish quality of life.
Standard management of CAD with coexisting anxiety or depression typically includes guideline-directed secondary prevention—such as antiplatelet therapy, statins, beta-blockers, and ACE inhibitors—alongside pharmacologic interventions targeting mood symptoms. However, conventional anxiolytics and antidepressants may carry notable limitations, including delayed onset of action, sexual dysfunction, weight gain, and potential cardiovascular side effects, which can complicate long-term use in this vulnerable population.
In recent years, integrative approaches have gained traction, with growing clinical and mechanistic support for certain TCM formulations. Among them, Wuling Capsules—a standardized, GMP-manufactured preparation derived from the fermented mycelium of Xylaria nigripes—have demonstrated consistent efficacy in randomized trials and meta-analyses for improving both psychological and somatic symptoms in CAD patients with anxiety or depression.
Pharmacologically, Wuling Capsules exert neuroregulatory effects via modulation of central glutamate and gamma-aminobutyric acid (GABA) metabolism. Research shows the formulation enhances glutamic acid decarboxylase (GAD) activity, thereby promoting GABA synthesis and facilitating inhibitory neurotransmission—contributing to reduced sympathetic hyperactivity, improved sleep architecture, and alleviation of irritability, dizziness, tinnitus, and insomnia.
Complementary nonpharmacologic strategies remain essential. Patients should prioritize circadian rhythm stabilization—maintaining consistent sleep-wake times, avoiding blue-light exposure and stimulants (e.g., caffeine, alcohol) one hour before bedtime, and practicing nightly warm foot soaks to promote peripheral vasodilation and autonomic balance. Dietary recommendations emphasize low-sodium, low-saturated-fat principles, supplemented with heart- and kidney-nourishing foods such as lily bulbs, lotus seeds, mulberries, and goji berries—while minimizing spicy, grilled, or overly processed items that may aggravate “excess heart fire.” Physical activity should be gentle and mindful: brisk walking, Tai Chi, and Baduanjin (Eight Brocades) are encouraged; high-intensity or resistance-based exercise is contraindicated due to increased myocardial oxygen demand.
Emotional self-regulation is equally vital. Chronic rumination and excessive worry deplete both heart qi and kidney essence—key TCM concepts linked to insomnia, vertigo, and tinnitus—making stress-reduction techniques, cognitive reframing, and regular social engagement integral components of holistic care.
In summary, for CAD patients experiencing irritability, insomnia, dizziness, or tinnitus—particularly when accompanied by anxiety or depressive symptoms—Wuling Capsules represent a well-studied, evidence-informed adjunctive therapy. When combined with foundational CAD pharmacotherapy and structured lifestyle modifications, this integrative strategy supports bidirectional regulation of the heart-brain axis, promotes sustained autonomic equilibrium, and contributes to comprehensive symptom control and long-term cardiovascular stability.