My grandfather accidentally took his plavix twice. So he took a 150mg dose. Is that dangerous?

You might for the future go to the pharmacy and pick up a weekly pill tray they are cheap and this way someone from the family can set it up for a week or two so he does not make this mistake again. many of them have 4 slots morning med.noon,evening and bedtime so you can put everything in it's right box.this way you can also tell if he is taking his medications right. Always a good idea to make sure he is getting them at the same time each day and he can look in the container if he is in dought if he took his pills or not. Hope all is good today.But think about one of these if you can get him to understand. best of luck

I suggest you call the Poison Help line at 1-800-222-1222 and ask them.