Osteoporosis treatment typically combines prescription medication with calcium, vitamin D, and weight-bearing exercise. The specific medication depends on your fracture risk, how much bone you’ve already lost, and whether you’re a candidate for oral pills or injections. Most people start with a class of drugs called bisphosphonates, but newer bone-building medications and supportive nutrients play important roles too.
Bisphosphonates: The Most Common Starting Point
Bisphosphonates slow down the cells that break down bone, giving your skeleton a chance to maintain or rebuild density. They’re the most widely prescribed osteoporosis drugs, and they come in several forms. Alendronate is taken as a 70 mg pill once a week. Risedronate can be taken weekly (35 mg) or monthly (150 mg). Ibandronate is available as a monthly pill or a monthly injection. For people who can’t tolerate pills, zoledronic acid is given as a once-yearly intravenous infusion.
Oral bisphosphonates have strict rules that make a real difference in how well they work and how your body tolerates them. You need to take the pill first thing in the morning on an empty stomach, at least 30 minutes before any food, drinks (other than plain water), or other medications. Then stay upright, either sitting or standing, for at least 30 minutes afterward. This prevents the pill from irritating or ulcerating your esophagus. If you have esophageal conditions like strictures or Barrett’s esophagus, or if you’ve had certain types of bariatric surgery, oral bisphosphonates aren’t an option for you.
Bone-Building Medications for Higher Risk
While bisphosphonates slow bone loss, a different category of drugs actually stimulates new bone growth. These are reserved for people at higher fracture risk, and they tend to produce larger gains in bone density over a shorter period.
Teriparatide, given as a daily injection, reduced the risk of spinal fractures by 65% and non-spinal fractures by 35% compared to placebo in its landmark trial. Abaloparatide, a similar daily injection, performed even better in some measures, cutting spinal fracture risk by 86% and non-spinal fractures by 43%. Romosozumab, a monthly injection given for one year, reduced new spinal fractures by 73% and is the only one of the three that showed a statistically significant reduction in hip fractures (56% lower risk compared to placebo) in network analyses.
These bone-building drugs are typically used for a limited window, often 12 to 24 months, then followed by a bisphosphonate or another maintenance medication to preserve the gains.
Denosumab: An Injectable Alternative
Denosumab works differently from bisphosphonates. It’s a biologic injection given every six months that blocks a protein your body uses to activate bone-dissolving cells. Without that signal, those cells can’t mature or survive, so bone breakdown slows significantly.
One important thing to know about denosumab: if you stop it, bone loss can rebound rapidly, sometimes leading to multiple spinal fractures. That means you need to either continue it long-term or transition to a bisphosphonate before stopping. Missing or delaying a dose can also trigger rebound, so staying on schedule matters more with this drug than with most others.
Raloxifene for Postmenopausal Women
Raloxifene belongs to a class of drugs that mimic estrogen’s positive effects on bone without stimulating breast tissue. It acts like estrogen where you want it (your skeleton) and blocks estrogen where you don’t (breast tissue). It’s approved both for preventing and treating postmenopausal osteoporosis, and it carries a secondary benefit: it reduces the risk of invasive breast cancer in postmenopausal women at elevated risk. The standard dose is 60 mg daily. Raloxifene is generally considered a option for women with lower fracture risk, or for those who also have breast cancer concerns.
Calcium and Vitamin D: The Foundation
No osteoporosis medication works well without adequate calcium and vitamin D. Your bones need the raw materials, and the drugs need something to work with.
The recommended daily calcium intake is 1,200 mg for women over 50 and men over 70. Men between 51 and 70 need 1,000 mg. Food sources are the preferred way to get calcium, since your body absorbs it better from dairy, fortified foods, leafy greens, and canned fish with bones. If you supplement, split the dose into 500-600 mg portions taken at different times of day, because your gut can only absorb so much at once.
Vitamin D helps your intestines absorb that calcium. The official recommendation is 600 IU daily for adults up to age 70 and 800 IU daily for those over 70. Many practitioners suggest higher doses for people with osteoporosis, especially if blood levels are low. A serum level of at least 50 nmol/L (20 ng/mL) is considered adequate for bone health, while anything below 30 nmol/L (12 ng/mL) signals deficiency. Levels above 125 nmol/L (50 ng/mL) can cause problems, so more is not always better.
Other Nutrients That Support Bone
Vitamin K2 plays a lesser-known but meaningful role. Your bone-building cells produce a protein called osteocalcin that pulls calcium from the bloodstream and binds it into bone. That protein is inactive when first made and requires vitamin K2 to switch on. In a three-year clinical trial of 244 postmenopausal women, 180 mcg of vitamin K2 daily improved bone mineral density, bone strength, and cardiovascular health. Even smaller amounts, around 32 mcg, have been linked to lower rates of blood vessel calcification.
Adequate protein also matters. Bone is roughly 50% protein by volume, and low protein intake is associated with greater bone loss, especially in older adults. Magnesium supports the enzymes involved in bone mineralization, and most adults don’t get enough of it from diet alone.
Rare but Serious Side Effects to Watch For
Two uncommon complications get the most attention with long-term bisphosphonate and denosumab use. Atypical femur fractures occur in the thigh bone, either just below the hip or along the shaft. They account for less than 1% of all hip and femur fractures, but the risk rises with longer treatment duration. The warning sign is a new, dull, aching pain in the thigh or groin that develops weeks to months before a full fracture. If you notice this kind of persistent pain while on treatment, it needs evaluation.
Osteonecrosis of the jaw, where a section of jawbone fails to heal after dental work, is the other concern. It’s far more common in cancer patients receiving high-dose treatment than in people taking standard osteoporosis doses, but good dental hygiene and informing your dentist about your medication are still smart precautions.
Drug Holidays: When to Pause Treatment
Bisphosphonates accumulate in bone over time, which means they keep working even after you stop taking them. This creates an opportunity for planned breaks that reduce long-term side effect risk while still protecting your bones.
How long you treat before a break depends on your fracture risk. People at mild risk may take bisphosphonates for 3 to 5 years, then pause until bone density drops significantly or a fracture occurs. Those at moderate risk typically treat for 5 to 10 years before a holiday of 3 to 5 years. High-risk patients, such as those with very low bone density, prior fractures, or long-term steroid use, may treat for up to 10 years and only pause for 1 to 2 years, sometimes using a different medication during the break.
The specific drug also matters. Risedronate clears from bone faster, so reassessment should happen after about one year off. Alendronate lingers longer, allowing 1 to 2 years before reassessment. Zoledronic acid persists the longest, with reassessment typically at 2 to 3 years. Drug holidays do not apply to denosumab, which requires a transition plan rather than a simple stop.
Weight-Bearing Exercise
Exercise won’t replace medication for established osteoporosis, but it’s one of the few interventions that can directly stimulate bone to become denser and stronger. The key is weight-bearing activity, where your bones support your body weight against gravity. Walking, dancing, low-impact aerobics, stair climbing, elliptical training, and even gardening all count.
If your bones are already significantly weakened, high-impact activities like jumping, running, or jerky movements can increase fracture risk. The general guidance is to choose slow, controlled movements. Resistance training with weights or bands is also valuable because it loads specific bones and strengthens the muscles around them, reducing fall risk. People who are generally fit and strong can handle somewhat higher-impact exercise, but someone who is frail should stick with gentler options.