Active ingredients: Clonidine

Product name and form

Catapres Tablets 100 micrograms.

Pharmaceutical Form


White, circular, flat, bevel-edged tablets impressed with the identifying code "01C / 01C" on one side and the company symbol on the reverse.

Qualitative and quantitative composition

Each tablet contains 100 micrograms of clonidine hydrochloride.

For excipients see 6.1.

Active Ingredient

Clonidine has been shown to have both central and peripheral sites of action. With long-term treatment clonidine reduces the responsiveness of peripheral vessels to vasoconstrictor and vasodilator substances and to sympathetic nerve stimulation. Early in treatment, however, blood pressure reduction is associated with a central reduction of sympathetic outflow and increased vagal tone.

List of Excipients

Lactose monohydrate
Calcium hydrogen phosphate (anhydrous)
Maize starch, dried
Colloidal silica (anhydrous)
Modified starch (corn starch, oxidized)
Stearic acid

Pack sizes and marketing

Opaque PVC 250µm thick/PVDC 40 g/m² blisters with aluminium lidding foil 20µm in packs of 100 tablets.

Marketing authorization holder

Boehringer Ingelheim Limited, Ellesfield Avenue, Bracknell, Berkshire, RG12 8YS, United Kingdom

Marketing authorization dates and numbers

PL 00015/5009R



Australia, Ireland, New Zealand, United Kingdom, United States