Drug Interactions With Carmustine
Carmustine may decrease the amount of digoxin absorbed from the gastrointestinal (GI) tract, which could make digoxin less effective. This interaction is less of a concern with liquid forms of digoxin. If you take digoxin tablets during carmustine treatment, your healthcare provider may need to monitor your digoxin blood levels and possibly switch you to liquid digoxin to reduce the risk of this interaction.
Echinacea may decrease the effectiveness of carmustine. Do not take echinacea during carmustine treatment without your healthcare provider's approval.
In general, people on carmustine should not receive live vaccines (vaccines that contain live viruses or bacteria). Because you are more susceptible to infections during carmustine treatment, you could become infected with the virus or bacteria used to make the vaccine. Also, live vaccines may be less effective in people using carmustine. Talk to your healthcare provider before getting a vaccination during carmustine treatment.
Melphalan may increase the risk for lung damage from carmustine. Make sure to tell your healthcare provider if you develop breathing problems, such as shortness of breath or a new or worsening cough, during carmustine treatment.
Carmustine can make sipuleucel-T less effective. This is because sipuleucel-T is thought to work by stimulating the body's immune system, while carmustine decreases the activity of the immune system. Talk to your healthcare provider about this possible interaction before using these medicines together.