generic substitution of long-acting calcium channel blockers (Cardizem CD, Tiazac, etc)

We're getting lots of questions about generic substitution of long-acting calcium channel blockers (Cardizem CD, Tiazac, etc).

It's hard to keep track of which long-acting diltiazem, verapamil, and nifedipine products are equivalent to each other.

Substitution depends on the drug and dosage form...and what your province or territory allows.

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