Allergic reaction to methotrexate

Tuesday night, I had what my pharmacist describes as an allergic reaction to methotrexate. Within two hours of injecting it into my thigh, I developed nickel- and quarter-sized hives on my knee and elbow pits. My breath was short. My heart palpitated.

With any other patient, with any order condition, with any other drug, these symptoms would be a classic allergic reaction. Any doctor would tell you to stop taking it. When you’re dealing with autoimmune diseases, this could almost mean anything.

A classic allergic reaction is caused by the immune system’s hypersensitivity to a typically harmless substance. Treatment for such a reaction is usually a drug that mildly suppresses the immune system. For example, diphenhydramine (Benadryl) is an antihistamine that treats all sorts of mild allergy attacks and cold symptoms. It is a common ingredient in NyQuil and other over-the-counter cold medicines. Doctors use another common immune system suppressant, prednisone, to treat asthma and rheumatoid arthritis. I also take it to treat my dermatomyositis.

Methotrexate is a heavy-duty immune system suppressant. The irony of an immune system suppressant causing an allergic reaction was not lost on my pharmacist or my internist.

Such a reaction after being on the medication since October is odd, but according to my pharmacist, very possible. Also odd: shortness of breath is a symptom of untreated dermatomyositis. However, hives are not. And this is the second week I have had them after injecting myself with methotrexate.

Because I only take the drug once a week, I have already discontinued it. I made an appointment with my rheumatologist for next week. I will most likely switch to a different medication, most likely, another immune system suppressant, azathioprine.

Hydroxychloroquine staves off dermatomyositis symptoms

Hydroxychloroquine (Plaquenil) staves off my dermatomyositis symptoms far better than I thought.

Hydroxychloroquine is cheap, relatively safe, and controls the heart and muscle inflammation associated with dermatomyositis.
Hydroxychloroquine is cheap, relatively safe, and controls the heart and muscle inflammation associated with dermatomyositis.

Hydroxychloroquine controls heart and muscle inflammation

This past weekend, I ran out of hydroxychloroquine, an antimalarial drug used to treat autoimmune diseases. By Monday, my heart started racing and palpitating. My lungs felt constricted. Both felt like they were on fire. My throat seemed to be closing, as though I had a piece of food stuck in it.

Doctors call these symptoms myocarditis and dysphagia, respectively. Basically, along with my skin and skeletal muscles, my immune system is attacking my heart, diaphragm, and throat muscles. Oddly enough, clinical tests show nothing. My resting heart rate is a healthy 55 beats per minute. My breathing tests were normal.

I also could hardly concentrate. Much like when you have the flu or are weight lifting, all you can think about is your body’s stress and pain. Much like when you feel anxious or drink too many double-shot espressos, your racing heart makes it tough to read and write.

I forgot all of these symptoms and have not experienced most of them since I started treatment in August. Because I mismanaged how much hydroxychloroquine I had left, they returned within 24 hours of exhausting my supply.

When refilling a prescription is worse than managing a proposal

Trying to understand refill procedures with my local pharmacy is like trying to communicate with project managers building the Tower of Babel.

Speaking of the ancient world, to remedy the situation, the pharmacist sent my rheumatologist a fax for the refill.

As a Denver Broncos fan, I know all too well the dangers of faxing in the 21st century, so I sent my rheumatologist a message through his online portal Monday. No response. I called the office Tuesday. His medical assistant’s voicemail says she will call back within 24 hours. She did not.

By Tuesday evening, I gave up and phoned my dermatologist, who is always on top of things. Within 45 minutes, the pharmacy cleared my refill.

Treating autoimmune diseases with hydroxychloroquine

Today, after taking 200 milligrams of hydroxychloroquine last night and this morning, my body is returning to normal. No more heart and lung issues. My throat feels less swollen. I will not mismanage my prescription again.

First developed in 1955 for treating malaria, hydroxychloroquine is the first-line treatment for dermatomyositis and lupus. Compared to other immunosuppressants, it has few side effects and is so safe pregnant women can and do take it. Better still, it costs next to nothing; even without insurance, a month supply is less than $25.

The only downside is long-term use of hydroxychloroquine can be toxic to your eyes. To make sure nothing like this happens, I take the recommended daily maximum dose and have an ophthalmologist as part of my care team.

Autoimmunity, methotrexate, and alcohol

Autoimmune patients taking methotrexate must avoid alcohol, according to most rheumatologists. So too say the makers of Otrexup (subcutaneous methotrexate). I messaged my doctor to double check: He agrees abstinence is best.

Not everyone agrees. Newer studies are changing some rheumatologists’ opinions. Many now say rheumatoid arthritis patients may consume alcohol in extreme moderation; in other words, a couple drinks a week is fine. Psoriasis patients, however, should avoid it.

So, where does that leave me? Since methotrexate is used off-label to treat dermatomyositis, all research on methotrexate and alcohol concerns psoriasis and rheumatoid arthritis patients. I can only trust my doctors and look at anecdotal evidence from other dermatomyositis patients.

Many myositis patients on online bulletin boards ignore doctors’ advice. “Live life!” they say. Others were told by their doctors a couple drinks a week is okay—just not on the same day as your injections.

One current complication for me is I am on prednisone and methotrexate. Both are hard on your liver. In fact, I can feel my liver throughout the day yelling at me. For me, until I get off the corticosteroids, alcohol is probably best avoided.

Visiting the dermatomyositis expert at Mayo Clinic

Mayo Clinic Scottsdale looks like a corss between a Cold War military complex and a lost Frank Lloyd Wright building.

Mayo Clinic Arizona is nestled on the northeastern edge of Scottsdale in the desert foothills of the McDowell Mountains. Its main structure looks like a cross between an unmapped military complex and a lost Frank Lloyd Wright building. In a nod to Wright’s organic architecture, the campus blends in with the Sonoran landscape; southern Arizona staples like saguaro, pipe organ cactus, mesquite, and palo verde surround it.

My girlfriend and I drive past the sparse vegetation, then park and enter underground, reinforcing my comparisons to a Cold War military site. We take two different sets of elevators to the second floor.

Hospitals rarely, if ever inspire positivity or happiness. Those waiting next to us either have serious health problems or are accompanying someone who does. Many are in wheelchairs. Several are bald. Others, like myself, have mottled skin.

Mayo Clinic in Rochester, Minnesota is, by most measures, the world’s best hospital. U.S. News and World Report rank its sister campus, Mayo Clinic Phoenix-Scottsdale, eleventh in the United States. I remind myself as I look around, wondering how many of these people are here as a last resort.

Mayo Clinic Uber-Rheumatologist, Part I

Just like any other visit to a specialist, after being called back, a nurse measures my height and weight, and I put on a gown. I wait.

The physician’s assistant enters with a stack of paperwork—written testament to the amount of time I’ve spent over the past six months in doctor’s offices, labs, and imaging centers. Unlike many physician’s assistants, this woman’s thoroughness and knowledge of internal medicine is immediately apparent.

After reviewing my medical history, she spends another half-hour examining my muscles, rashes, and lungs. She finds no additional evidence of muscles weakness or lung involvement.

Mayo Clinic Uber-Rheumatologist, Part II

The doctor enters. In my mind, I’ve talked up his reputation and specialty as though he holds all the answers, but as I told my girlfriend that morning, he is not a miracle worker. But he does know more about dermatomyositis than all but a handful of other highly trained men and women.

The rheumatologist re-checks my muscle strength. He remarks my muscle strength is excellent, but unlike my regular rheumatologist, he notes when a dermatomyositis patient works out as much as me, it’s possible people do not notice the muscle regression.

I certainly did. I went from being able to do thirty push-ups to being able to squeeze out three. Of course, that weakness could be from all the corticosteroids I’ve needed to manage my condition.

He surveys my rashes, then says these are classic dermatomyositis rashes. It’s a relief for someone to immediately recognize what I have.

All that said, he agrees with my rheumatologist that I most likely have amyopathic dermatomyositis. He thinks my prognosis is actually quite good and likes my current treatment plan. He nonetheless orders an electromyography (EMG) test to confirm my muscles are in good health and additional imaging to make certain I do not have cancer (10 percent of dermatomyositis patients have cancer).

My girlfriend asks him if my muscles could get worse over time, if my immune system could further attack itself, if this is only the beginning of the end. She wants answers, to know I’ll be around to love her as long as she is to love me.

He cannot promise that. Neither can I. But for now, apart from the itchy, painful rashes covering my chest and arms, I still have my health.