Just started Guanfacine. Success/failure stories?

Posted by jnatalo @jnatalo, Aug 19 11:23pm

Now on 1mg for about a week. I can’t tell if it’s effective for the brain fog, but it does make my blood pressure drop and it’s always been on the low side.
Hoping this stabilizes because I’d rather not faint any time soon.

Interested in more discussions like this? Go to the Post-COVID Recovery & COVID-19 Support Group.

trevors | @trevors | Aug 20 6:33am

Are you taking it with NAC? I take 1000mg with the Guanfacine at bedtime, and I find it really helps, both in clearing the fog and improving my overall mood. I am also taking an ADHD stimulant medication (Vyvanse) for brain fog, and it may be the combined effect that makes the difference for me. The stimulant also raises blood pressure, which could be a good thing in your case. I am "fortunate" enough to have high blood pressure, so that effect of the Guanfacine is beneficial in my case.

bluesky6321 | @bluesky6321 | Aug 20 7:15am

Last summer I stepped up from 0.5mg to 1 mg to 2 mg of guanfacine over four weeks. Plus 600 mg NAC, taking both at bedtime. It was truly amazing how much it helped my brain fog! I went from working part time to back to full time. I also have high blood pressure so I did not have negative side effects from the guanfacine. Unfortunately it did not get me back to 100% cognitive function, but it did make a huge difference. I have tried multiple other things since then. The one other thing that has helped the most is lion's mane, a supplement recommended by my doctor. I take 1 gram of that in capsule form before lunch time. Between the guanfacine and the lion's mane, (plus hard to know how much other stuff is helping) I feel much more like myself with my thinking ability. The guanfacine made such a difference to me, I highly recommend talking to a doctor about it to anyone who is suffering from brain fog!

bmekdeci | @bmekdeci | Aug 27 10:29am

I have a Covid-related condition called "burning brain". I never knew the name of what was going on until I saw it on this list serve. I did some research and found this incredible information on different treatments to try.

The "burning brain" or "brain on fire" sensation in Long COVID is a distressing symptom typically driven by neuroinflammation, microglial overactivation, and nervous system dysregulation. While there is no single cure for Long COVID, medical experts address this sensation through a combination of prescription therapies, targeted supplements, and neurological pacing to calm the immune response in the brain. [1, 2, 3, 4]
Because this symptom requires custom medical oversight, always work closely with a healthcare professional before changing your regimen. [5]
Medical and Pharmacological Options
Doctors and Long COVID clinics utilize a variety of off-label prescriptions to target brain inflammation and neural signaling: [4]
Guanfacine and N-Acetylcysteine (NAC): Pioneered by Yale School of Medicine, this specific drug combination has successfully reduced neuroinflammation and cleared brain fog in case studies. Guanfacine strengthens prefrontal cortex connections while NAC acts as an antioxidant. [6]
Low-Dose Naltrexone (LDN): Widely used by specialists to treat the "burning" or neuroinflammatory profiles of Long COVID and ME/CFS by inhibiting microglial activation (the brain's immune cells). [2]
Migraine and Nerve Pain Medications: If the burning mimics trigeminal nerve irritation or persistent post-viral headaches, doctors may use tricyclic antidepressants (like amitriptyline), CGRP inhibitors, or anticonvulsants (like gabapentin) to calm overactive pain pathways. [7, 8]
Mast Cell Stabilizers: If the burning is tied to Mast Cell Activation Syndrome (MCAS)—common in Long COVID—antihistamines or stabilizers like cromolyn sodium can help quiet systemic inflammatory cascades. [4]
Evidence-Based Supplements
Several natural compounds are being studied for their specific ability to reduce neuroinflammation and protect nerve function: [9]
PEA-LUT (Palmitoylethanolamide and Luteolin): This combination consists of a naturally occurring fatty acid and a plant-derived flavonoid that are clinically shown to reduce neuroinflammation and calm microglial cells. [9]
Creatine: Early research suggests daily creatine supplementation can optimize brain cellular energy and alleviate severe post-viral cognitive fatigue. [9]
Nicotinamide Riboside (NR): This booster increases NAD+ levels in the body to improve cellular defense and support the nervous system. [9]
Advanced Neurological Therapies
When standard treatments do not offer complete relief, rehabilitation centers introduce focal brain-calming modalities: [10]
Transcranial Magnetic Stimulation (TMS): Providers use focused magnetic pulses to modulate underactive or dysregulated brain circuits, helping the brain recalibrate its signaling. [11]
Neurofeedback: This therapy monitors EEG brainwaves in real-time, training the brain to shift away from highly stressed, over-activated inflammatory patterns. [11]
Vagus Nerve Stimulation (VNS): Stimulating the vagus nerve helps switch the autonomic nervous system out of a chronic "fight-or-flight" state and into a restorative, anti-inflammatory parasympathetic state. [12]
Lifestyle Practices & Neuro-Pacing
Calming an inflamed brain requires reducing the cognitive and environmental "load" that triggers symptom spikes: [5]
Low-Stimulation Breaks: When the burning intensifies, immediately step away from screens, lie down in a dark, quiet room, and set a timer for 10–15 minutes to allow the brain to regroup.
Activity Pacing: Adhering to strict energy management (the "spoon theory") prevents the physical and mental overexertion crashes that cause inflammation to flare up.
Anti-Inflammatory Diet: Transitioning to a Mediterranean-style diet while eliminating highly inflammatory foods—such as processed sugars, alcohol, and refined carbohydrates—removes external drivers of systemic inflammation. [4, 13, 14, 15, 16]