The best treatments for osteoporosis combine a fracture-preventing medication with calcium, vitamin D, exercise, and fall prevention. For most people, an oral bisphosphonate such as alendronate is the usual first choice. People at very high fracture risk, for example after a spine fracture, often do better starting with a bone-building (anabolic) drug and then switching to a medicine that holds on to the gains. The “best” option depends on your bone density, fracture history, kidney function, and personal preferences.
In my practice, I tell patients the goal is not a better scan result for its own sake, but fewer broken bones. Here is how the options compare.
What Osteoporosis Is and How It Is Diagnosed
Osteoporosis is a skeletal disease in which bone mass falls and bone structure deteriorates, making bones fragile. The pathophysiology of osteoporosis comes down to an imbalance: cells called osteoclasts remove bone faster than osteoblasts rebuild it. Falling estrogen after menopause, aging, low calcium and vitamin D, smoking, heavy alcohol use, inactivity, and long-term steroid use all tip that balance.
Early stages of osteoporosis usually cause no symptoms, so many people only learn they have it after a fracture, height loss, or a stooped posture. Diagnosis relies on a DEXA scan (dual-energy X-ray absorptiometry), which reports a T-score comparing your bone density with a healthy young adult. You can see how the condition progresses in our article on osteoporosis stages, pictures, and causes.
| T-score | Interpretation |
|---|---|
| -1.0 or higher | Normal bone density |
| Between -1.0 and -2.5 | Low bone mass (osteopenia) |
| -2.5 or lower | Osteoporosis |
| -2.5 or lower plus a fragility fracture | Severe (established) osteoporosis |
A hip or spine fracture after a minor fall also counts as osteoporosis, whatever the T-score. Doctors often combine the scan with a fracture risk calculator such as FRAX and blood tests to rule out other causes of bone loss.
Medications: The Core of Treatment
Osteoporosis drugs fall into two groups. Antiresorptive drugs slow the breakdown of bone. Anabolic drugs actively stimulate new bone formation.
| Medication | Type | How it is given | Main considerations |
|---|---|---|---|
| Alendronate, risedronate | Bisphosphonate | Tablet, usually weekly | First-line; take fasting with water and stay upright for 30 minutes |
| Zoledronic acid | Bisphosphonate | Intravenous infusion once a year | Useful if tablets upset the stomach; flu-like reaction after the first dose |
| Denosumab | Antibody (antiresorptive) | Injection every 6 months | Can be used with reduced kidney function; must not be stopped without a follow-on drug |
| Teriparatide, abaloparatide | Anabolic (parathyroid hormone analogs) | Daily self-injection | For very high fracture risk; followed by an antiresorptive |
| Romosozumab | Anabolic and antiresorptive | Monthly injections for 12 months | Avoided after recent heart attack or stroke |
| Raloxifene | SERM | Daily tablet | Protects the spine; raises clot risk |
| Hormone therapy | Estrogen | Tablet, patch, or gel | Mainly for younger postmenopausal women with menopausal symptoms |
Bisphosphonates
Bisphosphonates are the most widely used medicines and have a long safety record. After several years, many people can take a supervised “drug holiday” if their risk has fallen. Rare side effects include osteonecrosis of the jaw and atypical thigh-bone fractures, which is why a dental check before starting and periodic review are sensible.
Denosumab
Denosumab is a strong option when bisphosphonates are unsuitable. The key rule is that it should not simply be stopped: bone loss can rebound quickly and vertebral fractures can follow, so another medication is planned before discontinuing it.
Bone-building drugs
Teriparatide, abaloparatide, and romosozumab are reserved for people at very high risk, such as those with recent or multiple fractures or very low T-scores. After a course, an antiresorptive drug is started to lock in the new bone. For a look at what lies ahead, see our overview of treatments for osteoporosis and future directions.
Lifestyle Measures That Support Every Treatment
Medication works best on a solid foundation. These steps are recommended for nearly everyone with low bone density:
- Calcium: about 1,000 to 1,200 mg per day, ideally from food, with supplements only to fill the gap.
- Vitamin D: commonly 800 to 1,000 IU daily for older adults, adjusted to blood levels.
- Exercise: weight-bearing activity such as walking, plus resistance training and balance work like tai chi.
- Protein: adequate intake supports muscle and bone.
- Stop smoking and limit alcohol, both of which accelerate bone loss.
- Fall-proof your home: good lighting, secure rugs, grab rails, and a review of medicines that cause dizziness.
Our article on other ways to treat osteoporosis covers these measures in more depth.
Treating Fractures When They Happen
Hip fractures usually need surgical repair followed by rehabilitation. Most spinal compression fractures heal with pain control, activity modification, and physiotherapy. Vertebroplasty or kyphoplasty, which inject bone cement into a collapsed vertebra, are options for selected patients with persistent severe pain. Any fragility fracture should prompt a review of osteoporosis treatment, because one fracture raises the risk of another.
When to See a Doctor
Ask about a bone density scan if you are a woman aged 65 or older, a postmenopausal woman with risk factors, or anyone who has broken a bone from a minor fall. See a doctor promptly for sudden back pain, noticeable height loss, or a new curve in your upper back. If you already take treatment, report jaw pain, new thigh or groin pain, or side effects rather than stopping the medication on your own.
Frequently Asked Questions
What is the first-line treatment for osteoporosis?
For most people it is an oral bisphosphonate such as alendronate, combined with calcium, vitamin D, and exercise. People at very high risk may be advised to start with a bone-building drug instead.
Can osteoporosis be reversed?
Treatment can increase bone density and substantially lower fracture risk, and anabolic drugs rebuild bone. Density rarely returns fully to young-adult levels, so the aim is long-term fracture prevention.
How long do I need to take osteoporosis medication?
It varies by drug and risk. Bisphosphonates are often reviewed after about three to five years, while denosumab needs a planned transition if it is stopped. Your doctor will reassess with repeat scans and your fracture history.
Is exercise safe if I have osteoporosis?
Yes, and it is strongly recommended. Focus on walking, strength training, and balance exercises, and avoid heavy forward bending or twisting of the spine, which can stress fragile vertebrae.
For a complete overview of bone health, visit our osteoporosis guide.
