Ligesom andre antitrombotiske midler skal clopidogrel anvendes med forsigtighed til patienter med risiko for tiltagende blødninger pga. traumer, kirurgi eller andre patologiske tilstande samt til patienter, der samtidigt behandles med ASA, heparin, glykoprotein IIb/ IIIa - hæmmere eller nonsteroide antiinflammatoriske lægemidler, inklusive cox- 2 hæmmere.
As with other antiplatelet agents, clopidogrel should be used with caution in patients who may be at risk of increased bleeding from trauma, surgery or other pathological conditions and in patients receiving treatment with ASA, heparin, glycoprotein IIb/IIIa inhibitors, or non-steroidal anti-inflammatory drugs including Cox-2 inhibitors.