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Other brands with the same active ingredient

These brands contain the same active ingredient (Risedronate Sodium). Same strength and form. Confirm the switch with your doctor or pharmacist.

Available as: 150 mg

Indications & Uses

Risonet 150 is indicated for:

Pharmacology

Bones are living tissue that your body constantly breaks down and rebuilds. If you have osteoporosis, bone is broken down faster than it is replaced, so bone loss occurs gradually and your bones become thinner and more fragile. This is especially common in women after menopause (change of life). Many people with osteoporosis have no symptoms and may not even know they have it. However, osteoporosis makes fractures (broken bones) more likely, particularly in the spine, hips and wrists.

Risedronate binds to hydroxyapatite crystals in bone and works as an antiresorptive agent. At the cellular level, it inhibits osteoclasts. These osteoclasts continue to attach normally to the bone surface, but show reduced active resorption.

Dosage Reference

Reference Information Only

Dosages shown are general references from official sources. Always consult your doctor or pharmacist for personalized dosing.

Adults:

Treatment of postmenopausal osteoporosis, to reduce the risk of vertebral fractures. Treatment of established postmenopausal osteoporosis, to reduce the risk of hip fractures: the recommended dose is Risedronate Sodium 5 mg once daily, or Risedronate Sodium 35 mg once weekly on the same day each week, or Risedronate Sodium 150 mg once monthly.

Prevention of osteoporosis in postmenopausal women at increased risk of osteoporosis: the recommended dose is Risedronate Sodium 5 mg once daily.

To maintain or increase bone mass in postmenopausal women who are undergoing long-term (more than 3 months) systemic corticosteroid treatment at doses of 7.5 mg/day prednisone or its equivalent: the recommended dose is Risedronate Sodium 5 mg once daily.

Treatment of osteoporosis in men at high risk of fractures: the recommended dose is Risedronate Sodium 35 mg once weekly. The tablet should be taken on the same day each week.

Side Effects

Serious side effects: chest pain; difficulty or pain when swallowing; pain or burning felt under the ribs or in the back; new or worsening heartburn; severe pain in the joints, bones, or muscles; or pain, numbness, or swelling of the jaw. Less serious side effects: mild heartburn or an upset stomach; diarrhea, gas, or constipation; mild joint or back pain; headache.

Cautions & Contraindications

Warnings & Precautions

Take special care with Risonet if you have low blood calcium (hypocalcemia), cannot sit or stand upright for 30 minutes, have kidneys that work poorly, or have an allergy to Risonet. Before taking Risonet, talk to your doctor if you are pregnant or may become pregnant, since it is not known whether Risonet can harm an unborn child; if you are breast-feeding or plan to breast-feed, since it is not known whether Risonet can pass through breast milk or harm a baby; or if you have kidney problems, as Risonet may not be right for you. Risonet is not intended for use in children. During treatment, if you experience an allergic reaction, such as swelling of the face, tongue or throat, difficulty breathing or swallowing, or a skin rash, stop taking Risonet and seek medical advice immediately. If treatment has been stopped due to a hypersensitivity reaction, therapy with Risonet should not be restarted.

Contraindications

Risedronate Sodium tablet should not be used by anyone who is hypersensitive to Risedronate Sodium. It is also contraindicated in patients with hypocalcaemia and in those with severe renal impairment (creatinine clearance below 30 ml/min), as well as during pregnancy and lactation.

Pregnancy & Breastfeeding

Risedronate Sodium is intended only for postmenopausal women, so it should not be used during pregnancy. If you happen to take it while pregnant, stop right away and let your doctor know. The same applies during breastfeeding: since this medicine is meant only for postmenopausal women, breastfeeding mothers should not take it. Should it be taken by accident while breastfeeding, stop immediately and consult your doctor.

⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

Use in Special Populations

Pediatric use: Sedron tablets haven't been shown to be safe or effective in children and adolescents.

Elderly: You don't need to adjust the dose, because bioavailability, distribution and elimination in elderly people (60 years of age or older) were similar to those in younger subjects. The same was shown in postmenopausal women who are very elderly, 75 years old and above.

Renal impairment: Patients with mild to moderate renal impairment need no dose adjustment. Sedron is contra-indicated in patients with severe renal impairment (creatinine clearance lower than 30ml/min).

Overdose

There's no specific information on how to treat an overdose of Sedron. After a large overdose, serum calcium can be expected to fall, and some patients may also show signs and symptoms of hypocalcaemia. Milk, or antacids containing magnesium, calcium or aluminium, should be given so they bind Sedron and reduce how much of it is absorbed. If the overdose is a substantial one, gastric lavage may be considered to remove any Sedron that hasn't been absorbed yet.

⚠️ In an emergency call 999 or go to the nearest hospital emergency department.

Storage

Keep Risedronate Sodium in a cool, dry place and protect it from light and moisture. Keep it out of the reach of children.

Drug Interactions

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Common questions about Risonet 150 150 mg

What is Risonet 150 150 mg Tablet?

Risonet 150 150 mg Tablet is a medicine that contains Risedronate Sodium. It is made by Opsonin Pharma Limited. It belongs to the Bisphosphonate preparations group of medicines.

What is Risonet 150 used for?

Risonet 150 is used for: Osteoporosis.

What are the side effects of Risonet 150?

Serious side effects: chest pain; difficulty or pain when swallowing; pain or burning felt under the ribs or in the back; new or worsening heartburn; severe pain in the joints, bones, or muscles; or pain, numbness, or swelling of the jaw. Less serious side effects: mild heartburn or an upset stomach; diarrhea, gas, or constipation; mild joint or back pain; headache.

Can I take Risonet 150 during pregnancy or while breastfeeding?

Risedronate Sodium is intended only for postmenopausal women, so it should not be used during pregnancy. If you happen to take it while pregnant, stop right away and let your doctor know. Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

What happens if I take too much Risonet 150?

There's no specific information on how to treat an overdose of Sedron. After a large overdose, serum calcium can be expected to fall, and some patients may also show signs and symptoms of hypocalcaemia. In an emergency call 999 or go to the nearest hospital emergency department.

How should I store Risonet 150?

Keep Risedronate Sodium in a cool, dry place and protect it from light and moisture. Keep it out of the reach of children.

Can I take other medicines with Risonet 150?

Some medicines can interact with Risedronate Sodium, for example: Aspirin, Magnesium, Ibandronic Acid & Calcium Orotate. Tell your doctor or pharmacist about every medicine you take.

Do I need a prescription for Risonet 150?

Risonet 150 is a prescription (Rx) medicine. Take it as your doctor advises.

Last updated: 15 Aug 2026