Tirofiban Side Effects

Some side effects of tirofiban may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

For the Consumer

Applies to tirofiban: intravenous solution

Along with its needed effects, tirofiban may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor or nurse immediately if any of the following side effects occur while taking tirofiban:

More common
  • Abdominal or stomach pain or swelling
  • arm, back, or jaw pain
  • black, tarry stools
  • blood in the eyes
  • blood in the urine
  • bruising or purple areas on the skin
  • chest pain or discomfort
  • chest tightness or heaviness
  • coughing up blood
  • decreased alertness
  • fast or irregular heartbeat
  • headache
  • joint pain or swelling
  • nausea
  • nosebleeds
Less common
  • Bleeding gums
  • lightheadedness or fainting
  • pinpoint red spots on the skin
  • severe, unusual tiredness or weakness
  • slow heartbeat
  • swelling of the hands, ankles, feet, or lower legs
Incidence not known
  • Chills or fever
  • cough
  • difficulty swallowing
  • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  • skin rash, hives, or itching
  • trouble breathing

Some side effects of tirofiban may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common
  • Pain in the legs or hips
Less common
  • Dizziness
  • sweating

For Healthcare Professionals

Applies to tirofiban: intravenous powder for injection, intravenous solution

General

Prior to approval by the FDA the efficacy and safety of tirofiban was evaluated in 1,946 patients who received both tirofiban and heparin and 2,002 patients who received tirofiban alone. The average duration of exposure was 116 hours. Forty-three percent of the patients were greater than 65 years old and approximately 30% of the patients were female. In clinical studies, the incidences of side effects were generally similar among different races, and were not more prevalent among patients with hypertension or diabetes or hypercholesterolemia. The most common and potentially significant side effect was bleeding; non-bleeding side effects occurred in up to approximately 6% of patients. The overall incidence of non-bleeding side effects was higher in female and older patients compared with male or younger patients. However, the incidence of non-bleeding side effects was similar among all patients who received tirofiban + heparin versus heparin alone.

Hematologic

Hematologic lab changes in patients who received tirofiban + heparin versus heparin alone have included decreases in hemoglobin in 2.1% and 3.1% and hematocrit in 2.2% and 2.6%, increases in microhematuria in 10.7% and 7.8%, and increases in fecal occult blood in 18.3% and 12.2% of patients, respectively.

The incidence of thrombocytopenia (less than 100,000 cells/mcL) associated with tirofiban is 1.1% to 1.9%, while severe thrombocytopenia (less than 50,000 cells/mcL) has been reported in 0.2% to 0.5% of patients in clinical trials.

Decreases in platelet concentrations have been associated with the use of heparin alone. The incidences of reversible decreases in platelet concentrations among patients treated the tirofiban + heparin versus heparin alone in controlled trials were 1.5% and 0.6% (platelet counts less than 90,000/mm3) and 0.3% and 0.1% (platelet counts less than 50,000/mm3) of patients, respectively.

Risk factors for bleeding events in patients treated with glycoprotein (GP) IIb/IIIa inhibitors undergoing percutaneous coronary intervention have been identified and include advanced age, renal dysfunction, female gender, peripheral vascular disease, lower body weight, duration of GP IIb/IIIa inhibitor infusion, baseline platelet count, lower baseline hemoglobin, diabetes, and elevated peak activated clotting time. According to one study (CRUSADE trial) involving patients with non-ST-segment elevation acute coronary syndrome treated with a GP IIb/IIIa inhibitor, women are at a greater risk of bleeding than men, primarily because of excessive dosing.

The most common and potentially serious side effect associated with the use of tirofiban (and heparin and aspirin) has been bleeding. The incidences of major and minor bleeding in the PRISM-PLUS trial were 1.4% and 10.5%, respectively, and the incidence of transfusions was 4.0%. The incidences of these events in the RESTORE trial were 2.2%, 12.0%, and 4.3%. All incidences were greater than those observed among patients who were given heparin alone. There were no reports of intracranial hemorrhage (ICH) in the PRISM-PLUS trial, but the incidences of ICH associated with the use of tirofiban + heparin and heparin alone in the RESTORE trial were 0.1% and 0.3%. For patients who received tirofiban + heparin versus heparin alone, the following incidences were observed: retroperitoneal bleeding, 0% and 0.1% (PRISM-PLUS) and 0.6% and 0.3% (RESTORE), respectively; and gastrointestinal or genitourinary bleeding, 0.1% and 0.1% (PRISM-PLUS) and 0.2% and 0.0%, respectively. The incidences of major bleeding in patients undergoing PTCA in PRISM-PLUS among patients who were given tirofiban + heparin versus heparin alone were 0.3% and 0.1% (pre-PTCA), 1.3% and 0.7% (following angiography), and 2.5% and 2.2% (following PTCA), respectively. Female and elderly patients in either group had a higher incidence of bleeding compared with male or younger patients. Concomitant use of heparin did not confer significant additional risk of bleeding in any group.

Cardiovascular

Cardiovascular side effects in patients who received tirofiban + heparin versus heparin alone have included edema or swelling in 2% and 1%, bradycardia in 4% and 3%, and coronary artery dissection in 5% and 4% of patients, respectively. Many side effects may in fact be attributed to underlying disease or the risks of procedures patients were undergoing.

Analysis of one study (TARGET trial) indicates that patients with renal dysfunction undergoing PCI and receiving a GP IIb/IIIa inhibitor (i.e., tirofiban, abciximab) are at a higher risk of developing ischemic complications (30-day death, myocardial infarction,urgent revascularization) than patients with normal creatinine clearance.

Musculoskeletal

Musculoskeletal side effects in patients who received tirofiban + heparin versus heparin alone have included pelvic pain in 6% and 5% and general leg pain in 3% and 2% of patients, respectively. These side effects may in fact be attributed to complications associated with femoral artery access associated with angiography.

Nervous system

Nervous system side effects in patients who received tirofiban + heparin versus heparin alone have included vasovagal reactions in 2% and 1%, dizziness in 3% and 2%, and sweating in 2% and 1% of patients, respectively. Headache has been associated with the use of tirofiban + heparin in approximately 1% of patients (and in a similar fraction of patients treated with heparin alone).

Gastrointestinal

The only gastrointestinal side effect noted among patients in controlled trials was nausea, observed in approximately 1% of patients.

Hypersensitivity

Hypersensitivity reactions were remarkably absent in clinical studies prior to FDA approval. There were no recorded instances of anaphylaxis or hives. There are no data regarding the development of anti-tirofiban antibodies; very few patients have received this drug twice.

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. Drugs.com does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.

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