I think my friend may have overdosed on diltiazem. Said something about taking 4400 mgs of an extended release form. Is his life in danger?!?!?!
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. An overdose of diltiazem can be fatal.
Overdose symptoms may include slow heartbeat, weakness, chest pain, shortness of breath, or fainting.
This is in the USA! Hope everything goes well! Call Urgent Care or Emergency Room or go directly to these facilities for assistance.