Condition Guide · Bone Density Disorder

Osteoporosis

A plain-language guide to what osteoporosis is, the medications used to treat it, and what treatment actually looks like. Written for patients and caregivers in Maryland.

The short version

Osteoporosis means your bones have lost density and strength, so they break more easily than they should. It usually causes no symptoms at all until a bone breaks. About 12.6% of U.S. adults aged 50 and over have it. Treatment is a medication that either slows bone loss or builds new bone, and several of them are given at an infusion center rather than picked up at a pharmacy. Springside administers osteoporosis medications in Columbia, Bowie, and Frederick, Maryland. Your prescriber keeps managing your care. We handle the administration, the insurance authorization, and the paperwork.

What is Osteoporosis?

12.6%
of U.S. adults aged 50 and over have osteoporosis at the femur neck or lumbar spine, 19.6% of women and 4.4% of men. Another 43.1% have low bone mass, the stage before osteoporosis.Source: CDC / National Center for Health Statistics, National Health and Nutrition Examination Survey, 2017-2018 data, published March 2021. Figures are age-adjusted and cover adults 50 and older.

Bone is living tissue. Your body is constantly breaking down old bone and building new bone to replace it, a cycle that runs your whole life. Through your twenties the building outpaces the breaking down. Later it reverses.

The Bone Health and Osteoporosis Foundation defines the disease simply: "Osteoporosis is a bone disease that occurs when the body loses too much bone, makes too little bone, or both."

The result is bone that is less dense and more porous inside. It still looks like bone. It just has less structure holding it up, so a force that would not have broken it before now can. Breaks happen most often in the hip, the spine, and the wrist, though any bone can go.

Osteoporosis is not a normal part of getting older, and it is not something you have to simply accept. Bone loss can be slowed, and in some cases bone can be rebuilt.

How osteoporosis shows up

Osteoporosis is usually described two ways: by what caused it, and by how far the bone loss has gone.

By cause:

  • Primary osteoporosis. Bone loss related to aging and, in women, to the drop in estrogen after menopause. This is the most common form.
  • Secondary osteoporosis. Bone loss driven by another condition or by a medication taken for one. Long-term steroid treatment is a common cause, which is why some people arrive here from a rheumatology or transplant clinic rather than from a bone density scan.

By degree, measured on a bone density scan called a DXA:

  • Normal bone density.
  • Low bone mass, sometimes called osteopenia. Bone density below normal but not yet in the osteoporosis range. This is the stage where prevention matters most.
  • Osteoporosis. Bone density low enough to meet the diagnostic threshold.

Common symptoms

Osteoporosis has no symptoms. That is the hard part of it, and it is the honest answer. The Bone Health and Osteoporosis Foundation calls it "a silent disease because one can't feel bones weakening." Most people find out one of two ways: a bone density scan, or a broken bone.

There is nothing to feel and nothing to catch early on your own. What there is instead is a short list of signs that bone loss has already been happening for a while:

  • A broken bone from something minor. A fall from standing height, a hard hug, a cough. A break that seems out of proportion to what caused it is the classic sign.
  • Losing height. More than an inch or so, compared with your tallest adult height.
  • A curving upper back, or a change in posture that has come on gradually.
  • Sudden, unexplained back pain, which can be a spinal fracture that happened without a fall.

Because there is nothing to notice, screening is the whole game. Who should be scanned, and when, is a conversation with your doctor.

This page is educational, not medical advice. Only your doctor can diagnose osteoporosis or decide which treatment is right for you. If you have had a fall and think you may have broken a bone, or you have sudden severe back pain, contact your doctor or seek care right away.

How Osteoporosis is treated

Treatment has one goal: prevent the next fracture. Everything else, including the numbers on your scan, is a way of measuring progress toward that.

Calcium, vitamin D, weight-bearing exercise, and reducing fall risk at home are the foundation, and they stay part of the plan whatever medication you are on. When bone density is low enough, or you have already broken a bone, your doctor will usually add a prescription medication on top.

What these medications actually do

This is the distinction that matters, and it is the one most patients are never given. Osteoporosis medications work in two opposite directions.

Antiresorptive medications slow the loss. The Bone Health and Osteoporosis Foundation describes them as working "by slowing the resorption or breakdown part of the remodeling cycle." Your body keeps building bone at its usual rate while taking away less of it, so density gradually improves. Most osteoporosis drugs are in this group.

Anabolic medications build new bone. They stimulate formation directly. As the Foundation puts it: "More bone is formed than is taken away. The result is stronger bone that is less likely to break." These tend to be reserved for people at high risk, and they are given for a set period rather than indefinitely.

The practical consequence is worth understanding before you start. An anabolic course is finite, and when it ends, an antiresorptive usually follows to hold the gains. Your doctor is planning several years ahead, not just the next dose.

Drug categories

These are the osteoporosis medications Springside administers, grouped by how they work.

Bisphosphonates

Antiresorptive. They bind to bone and slow the cells that break it down. Both of the ones we give by IV are in this group.

Zoledronic acid, the generic form of Reclast. Per its FDA label, the regimen for treating osteoporosis is a 5 mg infusion once a year, given over no less than 15 minutes. Once a year is the whole schedule.

Boniva Injection, generic name ibandronate. Per its FDA label, it is 3 mg given by IV every 3 months, for treating postmenopausal osteoporosis. It is a shorter interval than zoledronic acid and a much shorter administration, which can suit someone who would rather come more often for less time.

RANK ligand inhibitors

Antiresorptive. They block a signal the body uses to activate the cells that dismantle bone. Denosumab (Prolia and biosimilars).

Per its FDA label, Prolia is 60 mg given as a subcutaneous injection every 6 months, in the upper arm, upper thigh, or abdomen. It is an injection under the skin, not an infusion into a vein.

Two things on the label are worth raising with your doctor rather than discovering later. Prolia carries a boxed warning about severe hypocalcemia in patients with advanced chronic kidney disease. And stopping it matters: the label states that "following discontinuation of Prolia treatment, fracture risk increases, including the risk of multiple vertebral fractures," and that patients should be moved to another antiresorptive rather than simply stopping.

Sclerostin inhibitors

Anabolic. They block a protein that puts the brakes on bone formation, so formation increases. Romosozumab (Evenity).

Per its FDA label, Evenity is 210 mg once a month, given as two separate subcutaneous injections at each visit, for 12 monthly doses. It is approved for postmenopausal women at high risk of fracture. After the 12 doses, the label says that "if osteoporosis therapy remains warranted, continued therapy with an anti-resorptive agent should be considered."

Evenity carries a boxed warning: it "may increase the risk of myocardial infarction, stroke, and cardiovascular death," and it should not be started in anyone who has had a heart attack or stroke in the past year. If you have a cardiac history, that is a conversation to have before your first dose.

Not every osteoporosis medication is given here, and not everything given here is an infusion. Many people take an oral bisphosphonate as a weekly or monthly tablet at home. Of the four medications on this page, zoledronic acid and Boniva Injection run through an IV. Prolia and Evenity are injections under the skin, which take minutes. Which medication and which route are right for you is a conversation with your prescriber.

Before your first dose: calcium, vitamin D, and your kidneys

These medications work by changing how your body handles bone, and bone is where most of your calcium is stored. That connection is why a few checks happen before your first dose, and why they are not a formality.

Low calcium has to be corrected first

Hypocalcemia, meaning low calcium in the blood, is listed as a contraindication on the labels for both zoledronic acid and Boniva Injection. It has to be treated before the medication is given, not after. Prolia goes further: its boxed warning covers severe hypocalcemia in people with advanced chronic kidney disease, where the label notes that cases have been serious and in some instances fatal.

In practice this means bloodwork before you start, and it means taking calcium and vitamin D as directed while you are on treatment. The Reclast label recommends at least 1,200 mg of calcium and 800 to 1,000 international units of vitamin D daily for patients whose dietary intake is not enough.

Kidney function

Zoledronic acid is contraindicated in patients with a creatinine clearance below 35 mL/min and in anyone with signs of acute kidney injury. This is why a recent kidney function test is part of the workup, and why the answer for some patients is a different medication.

Hydration on the day

The zoledronic acid label is direct about this: "Patients must be appropriately hydrated prior to administration." Drink water before you come. We will tell you how much when we confirm your appointment.

What to expect at your infusion

If you have never had an infusion, or you have only had one in a hospital, here is the shape of a typical visit. Osteoporosis appointments are short. Compared with the biologic infusions we give for other conditions, which can run several hours, this is a brief visit.

  1. Check-in and vital signs. Your care team reviews your medication guide with you and takes your vitals before anything is started.
  2. Confirming you are ready. Recent bloodwork is reviewed, including calcium and kidney function, and you will be asked whether you have had any dental work or jaw problems.
  3. Order confirmation. Your order is checked against what your prescriber wrote, including where you are in the schedule. For Evenity this means confirming which of the 12 monthly doses you are on.
  4. The medication. Zoledronic acid is an IV infusion given over no less than 15 minutes. Boniva Injection is given by IV as well, on a three-month schedule. Prolia is a single injection under the skin. Evenity is two injections at the same visit.
  5. Monitoring. A nurse stays with you, with staff and medication on hand to treat a reaction if one occurs.
  6. Observation afterward. How long depends on the medication and on your history.
  7. Home. Most patients return to their normal schedule the same day, as advised by their doctor.

Plan for more than the infusion time. The times listed on each medication page come from that drug's FDA label and cover the administration itself. Check-in, IV placement, and any observation are on top of that. When we confirm your appointment, we will tell you how long to plan for.

Already getting Osteoporosis infusions somewhere else?

You can change where you receive your osteoporosis treatment without changing your prescriber. Your doctor continues to manage your bone health and writes the order. We administer the medication and report back to them.

Many Maryland insurance plans now prefer, and some require, that non-urgent infusions be given at an ambulatory infusion center rather than a hospital outpatient department. That is often at meaningfully lower out-of-pocket cost. Coverage rules and prior-authorization requirements vary by plan, so we verify your benefits and handle the authorization before your first visit.

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