Yes...it's been discussed in the far past here...no consensus....some don't believe.  Happened to me tho I could not discern a pattern like : when first starting, a certain dosage, empty-full stomach.... just very noticeable cause:effect

Since it was overall beneficial...and the after dosage hits generally lower level...I powered through and eventually it became less common...tho NOTE...I used dosages ranging from 480 mg/dy out of cycle and  up to 1040 mg/dy in cycle...

Several other  notes:

normal release better for most vs extended release

Should be regular ECG's after 6 months or after increasing dosage

monitor blood pressure

Eat lots of fiber and stay hydrated to prevent constipation

A prednisone or methylprednisolone titration (bout 2 weeks) to break the cycle until verap
kicks in (7-14 days)

Got oxygen?

Read here re the Vit D3 regimen

Best

Jon

Yes. Definitely.

Has happened to me several times when reducing the dosage. Especially if you are on a high dose.

Like clockwork they appear 1h after taking my dose and the can quickly escalate to a 10. Tedious to abort with O2 and back after 30 min.

The only way to get rid of them is to up the dose again to original level. Takes up to 2 weeks to get back to "normal". Every time this has happened to me I use a zomig when taking the Verapamil. This keeps a lid on the verapamil induced attack. Careful with zomig rebound.

When reducing try a very slow taper. 40mg every 7-10 days.

For many here Verapamil is the holy Mary and although I admit that it's the only thing helping me it is not without downsides, this being one of them.

Not ideal by any means but under medical supervision and without coronary/cardiac pre-conditions Verapamil can also be stopped abruptly, without tapering.