What Medications to Avoid with ADOA?

If you have Autosomal Dominant Optic Atrophy (ADOA), certain medications and antibiotics—like ethambutol, linezolid, aminoglycosides, and amiodarone—should be avoided because they can put extra stress on your mitochondria. ADOA is caused by genetic changes (usually in the OPA1 gene) that affect how your mitochondria function, making the cells in your optic nerve especially vulnerable to damage ^[1][2][3]. Because your optic nerve is already dealing with mitochondrial dysfunction, exposing it to drugs that cause further mitochondrial stress can increase your risk of progressive vision loss ^[4][5].

When you have a mitochondrial condition like ADOA, it is essential to be cautious about the medications you take. Some drugs directly interfere with how mitochondria produce energy or cause oxidative damage (a type of cellular stress) ^[5][6].

Warning: Never stop taking a currently prescribed medication without consulting your healthcare provider. Stopping essential drugs abruptly—especially cardiac medications like amiodarone—can be life-threatening. Always talk to your doctor about safely transitioning to an alternative if needed.

Specific Medications and Antibiotics to Avoid

While there are safe options for treating infections and other conditions, the following medications are known to stress mitochondria and should generally be avoided or used with extreme caution if you have ADOA. Please note that this is not an exhaustive list of every potentially harmful drug, but rather a list of the most well-known and dangerous offenders for mitochondrial health.

• Ethambutol: This antibiotic is often used to treat tuberculosis and related infections. It is widely recognized for causing toxic optic neuropathy (damage to the optic nerve). People with genetic susceptibilities involving mitochondrial function have a higher risk of developing vision problems from ethambutol ^[7].
• Linezolid: This is a strong antibiotic used for serious bacterial infections. Linezolid works by inhibiting protein synthesis in bacteria, but it can also interfere with protein synthesis inside human mitochondria—meaning it stops the cell from building the proteins it needs to survive ^[8][9]. This interference has been linked to optic nerve disorders ^[10].
• Aminoglycoside antibiotics (such as streptomycin and gentamicin): These powerful antibiotics are used for severe infections. Aminoglycosides are known to induce mitochondrial oxidative stress ^[11][12][13]. Because some people with ADOA also develop hearing loss, it is critical to know that aminoglycosides carry a high risk of causing permanent hearing loss for those with mitochondrial vulnerabilities.
• Chloramphenicol: Another antibiotic known to interfere with how mitochondria build essential proteins, which can lead to optic nerve damage ^[14][15].
• Amiodarone: Used to treat irregular heartbeats, high doses of amiodarone can cause oxidative damage to the optic nerve, potentially leading to optic neuropathy ^[16].

Note on Eye Drops: The warnings for these antibiotics generally apply to systemic forms (pills or IVs that go directly into your bloodstream). For instance, aminoglycoside eye drops typically have very low absorption into the rest of the body, but you should still discuss them with your eye doctor to be safe.

Are Everyday Over-the-Counter Medications Safe?

It is common to worry about the safety of the pharmacy aisle after learning about mitochondrial stressors. Fortunately, standard over-the-counter (OTC) medications like acetaminophen (Tylenol) or ibuprofen (Advil) are generally considered safe for occasional use in people with ADOA when taken at the recommended doses. You do not need to avoid standard OTC cold medicines or pain relievers unless your doctor has specifically told you otherwise due to other health conditions.

What You Can Do to Protect Your Vision

Protecting your optic nerve means being an active participant in your healthcare.

• Speak Up: Always remind your healthcare providers that you have ADOA, a mitochondrial disease. Do not assume that every doctor or pharmacist knows which drugs are mitochondrial stressors. Ask your primary care doctor to place a “Mitochondrial disease” alert flag in your electronic health record (EHR) to help automate safety checks.
• Review Prescriptions: When prescribed a new antibiotic or medication, ask your doctor or pharmacist specifically if it carries any risks for the optic nerve or if it causes mitochondrial toxicity.
• Seek Alternatives: If a doctor suggests one of the medications listed above, ask if there is a safer alternative that will not stress your mitochondria. In most cases, there are other effective treatments available.
• Monitor Changes: If you must take a medication that carries a risk, pay close attention to your vision. If you notice any sudden or rapid decline in your sight, contact your neuro-ophthalmologist and the doctor who prescribed the medication immediately.