Absorption (calcium interaction)

Interaction at a glance

• Calcium can chelate or bind oral drugs

Mechanism

• Calcium can chelate or bind oral drugs
• Classic victims: tetracyclines/fluoroquinolones
• Some thyroid/bone drugs also lose absorption

Timing / washout

• Separate dosing by the drug-specific interval

Mechanism / modifiers

• Food/supplements both count as calcium sources

Self-check

• How does calcium interaction affect absorption?
  Calcium can chelate or bind oral drugs.
• Which two sources count toward calcium absorption interactions?
  Food and supplements.

Drugs in this interaction (19)

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