Rethink-Rx

Dr. Nicholas Marsh

Dr. Nicholas Marsh, DO is a board-certified anesthesiologist with over 37 years of healthcare experience. A graduate of the New York College of Osteopathic Medicine, he has served as an attending anesthesiologist at Inova Loudoun Hospital Center since 1992 and previously served as chairman and medical director of Anesthesia Services at a major Virginia medical center. Recognized by FindaTopDoc.com for clinical excellence, Dr. Marsh founded ReThink-Rx in 2021, where he focuses on educating, supporting, and certifying patients for medical cannabis.

Woman with hypermobility disorder experiencing joint pain relief through medical cannabis treatment, with highlighted joints and a calm home setting.

Medical Cannabis and Hypermobility Disorders: Could Cannabis Help Manage Chronic Pain and Improve Quality of Life?

Living with a hypermobility disorder can be exhausting. For many patients, chronic joint pain, frequent injuries, muscle tension, fatigue, poor sleep, and anxiety become part of everyday life. While some people are simply “double-jointed” without significant symptoms, others experience debilitating conditions such as Ehlers-Danlos syndrome (EDS) or Hypermobility Spectrum Disorder (HSD) that can affect nearly

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infographic image showing patient with polymyalgia rheumatica

Medical Cannabis and Polymyalgia Rheumatica: Can It Help Relieve Pain and Stiffness?

Polymyalgia rheumatica (PMR) is a painful inflammatory condition that primarily affects older adults. It can cause severe muscle aches, stiffness, fatigue, and reduced mobility, making everyday activities difficult. Many patients describe feeling as though they have suddenly aged decades overnight. While corticosteroids remain the standard treatment for PMR, long-term steroid use can lead to significant side

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Medical cannabis eligibility concept representing health conditions, patient safety, and medical marijuana certification in Virginia.

What Medical Conditions Can Prevent You From Getting a Medical Marijuana Card in Virginia?

If you have a complicated medical history, you may wonder whether a health condition could prevent you from getting a medical marijuana card in Virginia. The short answer is reassuring: Virginia doesn’t have a specific list of medical conditions that automatically disqualify patients from medical cannabis certification. Instead, your practitioner evaluates your health case by

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Photorealistic image of medical cannabis tincture, capsules, and vape pen beside HIV medication bottles, illustrating cannabis as supportive therapy for HIV-related symptoms.

Medical Cannabis and HIV/AIDS: Symptom Relief, Appetite Support, and Quality of Life

Living with HIV/AIDS today is very different from it was decades ago. Advances in antiretroviral therapy (ART) have transformed HIV into a manageable chronic condition for many patients. However, even with modern treatment, individuals living with HIV may still experience symptoms that affect quality of life. Chronic pain, nerve damage, nausea, appetite loss, sleep disturbance,

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Older patient enjoying a healthy meal with caregiver support while exploring medical marijuana for appetite loss.

Medical Marijuana and Appetite: How Cannabis May Help Patients Eat, Recover, and Feel Better

Loss of appetite can affect nearly every aspect of health. When patients stop eating well, energy drops, weight can change in unhealthy ways, medications become harder to tolerate, and recovery slows. Whether appetite loss is caused by chronic illness, pain, stress, or treatment side effects, it can be frustrating and sometimes frightening. Medical marijuana has

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Virginia patient consulting a medical cannabis doctor online as hemp THC products are removed from retail shelves.

Virginia Medical Cannabis vs. Retail Hemp: What Patients Need to Know About the New THC Rules

Virginia’s new hemp THC limit is now in effect. As of August 15, 2026, products sold as hemp in Virginia may contain no more than two milligrams of total THC per package. The previous exception for products containing at least 25 times more CBD than THC has ended. For patients who used delta-8, hemp-derived delta-9,

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Medical infographic illustrating how medical cannabis may support tremors, muscle control, sleep, stress reduction, and neurologic symptom management.

Medical Cannabis and Tremors: A Comprehensive Patient Guide

Tremors are involuntary, rhythmic shaking movements that can affect different parts of the body, most commonly the hands, arms, head, or voice. For many people, tremors are mild and manageable. For others, they can interfere with daily activities such as writing, eating, holding objects, or maintaining balance. While tremors are often associated with neurologic conditions

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