Can I Take Dolonex For Severe Cramps In Calf Muscle?

HI I AM AGED 58 YRS, WEIGHT 88 KG , HEIGHT 180 CM. I HAVE ONE STENT IN MY HEART IN 2009. NO AILMENTS ,PHYSICALLY FIT. HOWEVER TODAY MORNING DURING A GAME OF GOLF I DECENDED 20 FT INTO A DRY POND ALONG THE SLOPES TO PLAY A SHOT AND CLIMBING ON THE WAY UP MY RIGHT CALF MUSCLE CAUGHT INTO A SEVERE CRAMP .THE PAIN WAS EXCRUCIATING BUT I MANAGED TO CLIMB OUT OF IT WITH A LITTLE ASSISTANCE. SINCE THEN THE CALF MUSCLE IS IN DEEP PAIN AND I AM UNABLE TO WALK. I AM LIMPING WITH MY RIGHT FOOT ONLY WHEN REQUIRED.AM BED RIDDEN AND ANY TURNING OF THE LEFT FOOT IN ANY DIRECTION IS PAINFUL.HAVE JUST BEEN ADVISED BY A FRIEND TO TAKE A TABLET OF DOLONEX DT, SAID TO BE A PAIN RELIEVER FOR THE MUSCLE CATCH.EARLIER DURING THE DAY I HAVEDONE SOME SWOBBING WITH ICE,BUT NOT MUCH RELIEF