ISTIN Tablet

Active ingredients: Amlodipine

Product name and form

ISTIN 5 mg tablets.

Pharmaceutical Form


White to off-white, emerald-shaped tablets engraved AML 5 and breaker score on one side and Pfizer logo on the other side.

The 5 mg tablet can be divided into equal halves.

Qualitative and quantitative composition

Each tablet contains amlodipine besilate equivalent to 5 mg amlodipine.

Excipients: For the full list of excipients, see section 6.1.

Active Ingredient

Amlodipine is a calcium ion influx inhibitor of the dihydropyridine group (slow channel blocker or calcium ion antagonist) and inhibits the transmembrane influx of calcium ions into cardiac and vascular smooth muscle.

List of Excipients

Microcrystalline cellulose
Calcium hydrogen phosphate anhydrous
Sodium starch glycolate Type A
Magnesium stearate

Pack sizes and marketing

PVC-PVDC/Aluminium foil blisters containing 4, 10, 14, 20, 28, 30, 50, 60, 98, 100, 300, 500 tablets.

PVC-PVDC/Aluminium foil blisters in calendar packs containing 28 and 98 tablets.

PVC-PVDC/Aluminium foil blister strips containing 50x1 and 500x1 tablets.

Not all pack sizes may be marketed.

Marketing authorization holder

Upjohn UK Limited, Ramsgate Road, Sandwich, Kent, CT13 9NJ, United Kingdom

Marketing authorization dates and numbers

PL 50622/0033

18th September 1989 / 8th February 2013


Ireland, United Kingdom