Meta Information
ID:bisphosphonates
Name:
Schema Version:AIM-2.0
Interactions
Target id:
/circadian/wake
Target name:
Waking Up (on an empty stomach)
Severity:
major
Interaction type:
requirement
Nature:
temporal
Temporal spacing:
Hours before target:
0
Hours after target:
0
Description:
Taking oral bisphosphonates immediately upon waking ensures an empty stomach from an overnight fast, which is absolutely critical for the drug to be absorbed.
Actionable advice:
Take your medication first thing in the morning before any food, drink, or other medications.
Target id:
/dietary/meal
Target name:
Any Food or Meal
Severity:
major
Interaction type:
diminishing
Nature:
temporal
Temporal spacing:
Hours before target:
0.5
Hours after target:
8
Description:
Food and beverages create a complex with bisphosphonates in the stomach, preventing their absorption by over 99%. An overnight fast is required before, and a waiting period is required after.
Actionable advice:
Take at least 30-60 minutes before your first meal and at least 8 hours after your last meal.
Target id:
/dietary/non-water-beverage
Target name:
Any Beverage Except Plain Water
Severity:
major
Interaction type:
diminishing
Nature:
temporal
Temporal spacing:
Hours before target:
0.5
Hours after target:
2
Description:
Beverages like coffee, tea, juice, and milk contain minerals and organic compounds that bind to bisphosphonates and severely inhibit their absorption.
Actionable advice:
Do not take your dose with any liquid other than plain water, and wait 30-60 minutes before consuming other drinks.
Target id:
/class/chelating-minerals
Target name:
Mineral Supplements (Calcium, Magnesium, Iron, Zinc)
Severity:
major
Interaction type:
diminishing
Nature:
temporal
Temporal spacing:
Hours before target:
0.5
Hours after target:
4
Description:
Multivalent cations (like calcium and iron) form insoluble complexes with bisphosphonates in the gut, completely preventing their absorption.
Actionable advice:
Separate bisphosphonate and mineral supplement doses by at least 4 hours.
Target id:
/class/antacids
Target name:
Antacids
Severity:
major
Interaction type:
diminishing
Nature:
temporal
Temporal spacing:
Hours before target:
0.5
Hours after target:
2
Description:
Antacids contain multivalent cations (calcium, magnesium, aluminum) that bind to bisphosphonates and block their absorption from the gut.
Actionable advice:
Separate bisphosphonate and antacid doses by at least 2 hours.
Target id:
/dietary/water
Target name:
Plain Water
Severity:
major
Interaction type:
requirement
Nature:
temporal
Temporal spacing:
Hours before target:
0
Hours after target:
0
Description:
Bisphosphonates must be taken with a full glass (6-8 oz) of plain water to ensure proper transit to the stomach and to reduce the risk of esophageal irritation.
Actionable advice:
Take your dose with a full glass of plain water only; do not use mineral water.
Target id:
/condition/lying-down
Target name:
Lying Down or Reclining
Severity:
major
Interaction type:
adverse
Nature:
temporal
Temporal spacing:
Hours before target:
0.5
Hours after target:
0
Description:
Lying down after taking an oral bisphosphonate can cause the pill to lodge in the esophagus, leading to severe irritation, inflammation, or ulceration.
Actionable advice:
Remain upright (sitting or standing) for at least 30-60 minutes after taking your dose.
Target id:
/condition/renal-impairment
Target name:
Kidney Disease (Renal Impairment)
Severity:
major
Interaction type:
adverse
Nature:
absolute
Description:
Bisphosphonates are cleared by the kidneys; their use in severe renal impairment (CrCl < 30-35 mL/min) is contraindicated as it can lead to drug accumulation and worsen kidney damage.
Actionable advice:
Avoid bisphosphonates if you have severe kidney disease; dose adjustments may be needed for mild-moderate cases.
Target id:
/condition/esophageal-disorders
Target name:
Esophageal Disorders (e.g., strictures, achalasia)
Severity:
major
Interaction type:
adverse
Nature:
absolute
Description:
Patients with abnormalities of the esophagus that delay emptying are at a much higher risk for severe esophageal irritation and damage from oral bisphosphonates.
Actionable advice:
Oral bisphosphonates are contraindicated in patients with significant esophageal motility disorders.
Target id:
/condition/hypocalcemia
Target name:
Low Blood Calcium (Hypocalcemia)
Severity:
major
Interaction type:
adverse
Nature:
absolute
Description:
Bisphosphonates work by reducing calcium release from bone, which can lower blood calcium levels. They should not be started in patients with pre-existing hypocalcemia.
Actionable advice:
Ensure your calcium levels are corrected and normal before starting this medication.
Target id:
/intervention/vitamin_d3_systemic_healthspan
Target name:
Adequate Vitamin D
Severity:
major
Interaction type:
requirement
Nature:
absolute
Description:
Adequate vitamin D is necessary for dietary calcium absorption. Without it, bisphosphonate therapy is less effective and the risk of low blood calcium (hypocalcemia) increases.
Actionable advice:
Ensure adequate vitamin D intake and normal blood levels before and during therapy.
Target id:
/intervention/calcium-citrate
Target name:
Adequate Calcium Intake
Severity:
major
Interaction type:
requirement
Nature:
absolute
Description:
Adequate calcium intake from diet or supplements is essential to provide the building blocks for bone and to prevent hypocalcemia during bisphosphonate therapy.
Actionable advice:
Ensure adequate daily calcium intake, but always separate calcium supplements from your bisphosphonate dose by several hours.
Target id:
/condition/pregnancy
Target name:
Pregnancy
Severity:
major
Interaction type:
adverse
Nature:
absolute
Description:
Bisphosphonates can cross the placenta and accumulate in fetal bone, with unknown long-term effects; they are generally contraindicated in pregnancy.
Actionable advice:
Avoid using bisphosphonates if you are pregnant or planning to become pregnant.
Target id:
/condition/lactation
Target name:
Breastfeeding (Lactation)
Severity:
major
Interaction type:
adverse
Nature:
absolute
Description:
It is not known if bisphosphonates are excreted in human milk, and due to their long half-life in the body, they are not recommended during breastfeeding.
Actionable advice:
Do not use bisphosphonates while breastfeeding.
Target id:
/class/nsaids
Target name:
NSAIDs (e.g., Ibuprofen, Naproxen)
Severity:
moderate
Interaction type:
adverse
Nature:
absolute
Description:
Both bisphosphonates and NSAIDs can irritate the upper gastrointestinal tract, increasing the risk of gastritis, ulcers, and bleeding when used together.
Actionable advice:
Use NSAIDs cautiously and report any stomach pain or black stools to your doctor immediately.
Target id:
/class/proton-pump-inhibitors
Target name:
Proton Pump Inhibitors (PPIs)
Severity:
moderate
Interaction type:
diminishing
Nature:
absolute
Description:
Long-term use of PPIs raises stomach pH, which may decrease the absorption of bisphosphonates. Some studies also link long-term PPI use to increased fracture risk.
Actionable advice:
Discuss the risks and benefits of long-term concurrent use with your doctor.
Target id:
/procedure/invasive-dental-work
Target name:
Invasive Dental Procedures (e.g., extraction, implants)
Severity:
moderate
Interaction type:
adverse
Nature:
absolute
Description:
Bisphosphonate use is associated with a small but serious risk of osteonecrosis of the jaw (ONJ), which can be triggered by invasive dental procedures.
Actionable advice:
Inform your dentist you are taking a bisphosphonate; complete any needed dental work before starting therapy if possible.
Target id:
/class/nephrotoxic-agents
Target name:
Other Kidney-Affecting Drugs
Severity:
moderate
Interaction type:
adverse
Nature:
absolute
Description:
Combining bisphosphonates, which are cleared by the kidneys, with other drugs that can harm the kidneys (e.g., aminoglycosides, certain diuretics) increases the risk of renal impairment.
Actionable advice:
Inform your doctor about all medications you take; kidney function monitoring may be required.
Target id:
/class/antibiotics-long-term
Target name:
Aminoglycoside Antibiotics (e.g., Gentamicin)
Severity:
moderate
Interaction type:
adverse
Nature:
absolute
Description:
Concurrent use with aminoglycosides, which can also lower serum calcium, may result in severe and prolonged hypocalcemia.
Actionable advice:
If these drugs must be used together, close monitoring of serum calcium is required.