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Alendronate

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Overview

What is Alendronate?

Alendronate sodium is a bisphosphonate that acts as a specific inhibitor of osteoclast-mediated bone resorption.

Bisphosphonates are synthetic analogs of pyrophosphate that bind to the hydroxyapatite found in bone.

Alendronate sodium is chemically described as (4-amino-1-hydroxybutylidene) bisphosphonic acid monosodium salt trihydrate. The empirical formula of alendronate sodium is CHNNaOP∙3HO and its formula weight is 325.12. The structural formula is:

Alendronate sodium is a white, crystalline, nonhygroscopic powder. It is soluble in water, very slightly soluble in alcohol, and practically insoluble in chloroform.

Alendronate sodium tablets, USP for oral administration contain 6.53, 13.06, 45.69 or 91.37 mg of alendronate monosodium salt trihydrate, which is the molar equivalent of 5, 10, 35 and 70 mg, respectively, of free acid, and the following inactive ingredients: microcrystalline cellulose, croscarmellose sodium, and magnesium stearate.



What does Alendronate look like?



What are the available doses of Alendronate?

Tablets: 5 mg, 10 mg, 35 mg and 70 mg ()

What should I talk to my health care provider before I take Alendronate?

How should I use Alendronate?

Alendronate sodium tablets, USP are indicated for the treatment of osteoporosis in postmenopausal women. In postmenopausal women, alendronate sodium tablets, USP increase bone mass and reduces the incidence of fractures, including those of the hip and spine (vertebral compression fractures).

The recommended dosage is:


What interacts with Alendronate?

Sorry No Records found


What are the warnings of Alendronate?

Sorry No Records found


What are the precautions of Alendronate?

Sorry No Records found


What are the side effects of Alendronate?

Sorry No records found


What should I look out for while using Alendronate?

Alendronate sodium is contraindicated in patients with the following conditions:


What might happen if I take too much Alendronate?

Significant lethality after single oral doses was seen in female rats and mice at 552 mg/kg (3256 mg/m) and 966 mg/kg (2898 mg/m), respectively. In males, these values were slightly higher, 626 and 1280 mg/kg, respectively. There was no lethality in dogs at oral doses up to 200 mg/kg (4000 mg/m).

No specific information is available on the treatment of overdosage with alendronate sodium. Hypocalcemia, hypophosphatemia, and upper gastrointestinal adverse events, such as upset stomach, heartburn, esophagitis, gastritis, or ulcer, may result from oral overdosage. Milk or antacids should be given to bind alendronate. Due to the risk of esophageal irritation, vomiting should not be induced and the patient should remain fully upright.

Dialysis would not be beneficial.


How should I store and handle Alendronate?

Store at 20°-25°C (68°-77°F) [see USP Controlled Room Temperature].Dispense in a tight, light-resistant container as defined in the USP/NF with a child-resistant closure.A Schedule CII Narcotic.Store at 20°-25°C (68°-77°F) [see USP Controlled Room Temperature].Dispense in a tight, light-resistant container as defined in the USP/NF with a child-resistant closure.A Schedule CII Narcotic.Store at 20°-25°C (68°-77°F) [see USP Controlled Room Temperature].Dispense in a tight, light-resistant container as defined in the USP/NF with a child-resistant closure.A Schedule CII Narcotic.Product: 50090-2587NDC: 50090-2587-0 4 TABLET in a BLISTER PACK NDC: 50090-2587-1 4 TABLET in a BLISTER PACK Product: 50090-2587NDC: 50090-2587-0 4 TABLET in a BLISTER PACK NDC: 50090-2587-1 4 TABLET in a BLISTER PACK Product: 50090-2587NDC: 50090-2587-0 4 TABLET in a BLISTER PACK NDC: 50090-2587-1 4 TABLET in a BLISTER PACK


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Clinical Information

Chemical Structure

No Image found
Clinical Pharmacology

Animal studies have indicated the following mode of action. At the cellular level, alendronate shows preferential localization to sites of bone resorption, specifically under osteoclasts. The osteoclasts adhere normally to the bone surface but lack the ruffled border that is indicative of active resorption. Alendronate does not interfere with osteoclast recruitment or attachment, but it does inhibit osteoclast activity. Studies in mice on the localization of radioactive [H]alendronate in bone showed about 10-fold higher uptake on osteoclast surfaces than on osteoblast surfaces. Bones examined 6 and 49 days after [H]alendronate administration in rats and mice, respectively, showed that normal bone was formed on top of the alendronate, which was incorporated inside the matrix. While incorporated in bone matrix, alendronate is not pharmacologically active. Thus, alendronate must be continuously administered to suppress osteoclasts on newly formed resorption surfaces. Histomorphometry in baboons and rats showed that alendronate treatment reduces bone turnover (i.e., the number of sites at which bone is remodeled). In addition, bone formation exceeds bone resorption at these remodeling sites, leading to progressive gains in bone mass.

Non-Clinical Toxicology
Alendronate sodium is contraindicated in patients with the following conditions:

Alendronate sodium, like other bisphosphonates administered orally, may cause local irritation of the upper gastrointestinal mucosa. Because of these possible irritant effects and a potential for worsening of the underlying disease, caution should be used when alendronate sodium is given to patients with active upper gastrointestinal problems (such as known Barrett's esophagus, dysphagia, other esophageal diseases, gastritis, duodenitis, or ulcers).

Esophageal adverse experiences, such as esophagitis, esophageal ulcers and esophageal erosions, occasionally with bleeding and rarely followed by esophageal stricture or perforation, have been reported in patients receiving treatment with oral bisphosphonates including alendronate sodium. In some cases these have been severe and required hospitalization. Physicians should therefore be alert to any signs or symptoms signaling a possible esophageal reaction and patients should be instructed to discontinue alendronate sodium and seek medical attention if they develop dysphagia, odynophagia, retrosternal pain or new or worsening heartburn.

The risk of severe esophageal adverse experiences appears to be greater in patients who lie down after taking oral bisphosphonates including alendronate sodium and/or who fail to swallow oral bisphosphonates including alendronate sodium with the recommended full glass (6-8 oz) of water, and/or who continue to take oral bisphosphonates including alendronate sodium after developing symptoms suggestive of esophageal irritation. Therefore, it is very important that the full dosing instructions are provided to, and understood by, the patient . In patients who cannot comply with dosing instructions due to mental disability, therapy with alendronate sodium should be used under appropriate supervision.

There have been post-marketing reports of gastric and duodenal ulcers with oral bisphosphonate use, some severe and with complications, although no increased risk was observed in controlled clinical trials .

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Reference

This information is obtained from the National Institute of Health's Standard Packaging Label drug database.
"https://dailymed.nlm.nih.gov/dailymed/"

While we update our database periodically, we cannot guarantee it is always updated to the latest version.

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Professional

Clonazepam Description Each single-scored tablet, for oral administration, contains 0.5 mg, 1 mg, or 2 mg Clonazepam, USP, a benzodiazepine. Each tablet also contains corn starch, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and povidone. Clonazepam tablets USP 0.5 mg contain Yellow D&C No. 10 Aluminum Lake. Clonazepam tablets USP 1 mg contain Yellow D&C No. 10 Aluminum Lake, as well as FD&C Blue No. 1 Aluminum Lake. Chemically, Clonazepam, USP is 5-(o-chlorophenyl)-1,3-dihydro-7-nitro-2H-1,4-benzodiazepin-2-one. It is a light yellow crystalline powder. It has the following structural formula: C15H10ClN3O3 M.W. 315.72
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Interactions

Interactions

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