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Talking to your doctor about CBD and THC: what to share, why it matters, and other FAQs

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With the rise of CBD oils, THC drinks, gummies, and other products across North Carolina, more adults are incorporating these into their daily routines. But many still feel unsure or uncomfortable when it comes to talking to their doctor about CBD and THC.

The reality is that being open with your clinician is one of the most important steps you can take to protect your health. Whether you’re using THC edibles, CBD tinctures, or topical products, your care team needs the full picture to help you stay safe and feel your best.

Alicia Allman, PA-C, is a primary care clinician at Tryon Medical Partners who helps patients navigate everything from chronic conditions to lifestyle habits (including supplement and cannabis use) in a practical, judgment-free way.


Why talking to your doctor about CBD and THC matters

Many patients don’t realize that CBD and THC products fall into the same category as other substances your clinician needs to know about.

Being open about your CBD and THC use helps your clinician:

  • Identify potential side effects
  • Understand new or unexplained symptoms (like anxiety or panic attacks)
  • Avoid harmful drug interactions
  • Recommend safer or more effective alternatives

“Patients should always tell us about all lifestyle habits and substance use,” PA-C Allman explains. “We’re not here to judge; we just need a complete medical picture. Even products marketed as ‘natural’ can have real effects on your body.”


What counts as CBD and THC use?

When talking to your doctor about CBD and THC, it’s important to mention all forms, not just what you eat or drink.

Common products include:

  • THC drinks (seltzers, tonics)
  • THC edibles, like gummies or candies
  • CBD oils and tinctures
  • Capsules or supplements
  • Topical creams or lotions

Even though topical products may seem less significant, it’s still helpful to mention them, especially if you’re using multiple products or higher doses.


What should you tell your doctor?

If you’re unsure how to approach talking to your doctor about CBD and THC, focus on a few key details.

PA-C Allman recommends sharing:

  • How much you use
  • How often you use it
  • Why you’re using it (sleep, anxiety, pain, etc.)

“I like to know the ‘why,’ too,” she says. “Is this to relax? Is this for anxiety or arthritis? There may be other ways we can help.”

This opens the door to a broader conversation about your health goals and whether there are safer or more effective options available.


Can CBD or THC interact with medications?

PA-C Allman shared that patients often ask what drugs should not be taken with CBD, and the answer is that it depends. It depends on the individual, the medication, their family history, and other individual factors. CBD can affect how your body processes certain drugs, which may increase or decrease their effectiveness. THC, meanwhile, may have additional effects on mood and anxiety, cognitive function, and heart rate. 

“I need to know if something I’m prescribing is going to interact with what you’re taking,” PA-C Allman says.


Does CBD show up on a drug test?

While CBD itself is not typically the target of drug tests, some products may contain trace amounts of THC, especially if they’re not tightly regulated. This means there is a possibility of a positive test, depending on the product and frequency of use.

Because supplements and CBD products are not strictly regulated, the actual contents may not always match the label.


When should you be concerned about CBD or THC use?

It’s important to recognize when substance use, of any kind, may be doing more harm than good.

PA-C Allman suggests paying attention to:

  • Negative side effects (anxiety, panic, cognitive changes)
  • Changes in daily functioning (difficulty at work, neglecting responsibilities)
  • Feedback from friends or family about mood or behavior
  • Increased isolation or irritability

“Nothing you take to help you or make life more enjoyable should worsen your functioning,” she says. “If you notice these changes, it’s a good time to bring them up with your clinician.”


Are CBD and THC always always the best choice?

CBD and THC products are often marketed as quick fixes, but they’re not always addressing the root cause.

“Many of us have strayed from the basics to support our physical and mental health,” PA-C Allman says. “Sleep, sunshine, regular diet, moving your body, these are the basics to make sure you’re covered before considering something like CBD or THC.”

Before starting any supplement or cannabis product, she encourages patients to ask themselves:

  • What am I trying to fix?
  • Have I addressed the basics first?
  • Is my annual physical up to date?

For example, if you’re using CBD for sleep, it may help to explore foundational habits and sleep hygiene before taking a supplement to assist. Similarly, if you’re using it for stress or mood, consider identifying your sources of stress and attempting to change them with lifestyle changes before looking for supplements. 


Your care is confidential and judgment-free

If you’re hesitant to talk to your doctor about CBD and THC, you’re not alone. But it’s important to know that these conversations are confidential and focused on your well-being.

Your clinician’s goal is not to judge; it’s to help.

“Make sure to talk to your doctor,” PA-C Allman says. “We just want to understand what’s going on so we can take the best care of you.”

If you have questions or want to discuss your use in a supportive environment, consider visiting the Tryon Medical Partners website to learn more or schedule an appointment.