Thyrogen-X and Venom Hyperdrive and having a heart attack

[plik]

... okay, not really a heart attack.

I have a question on timing.

I noticed that I need about 2 hours for Venom Hyperdrive to really kick in enough to where it benefits my workout.

However, I don't know when I should be taking Thyrogen-X.

I do 45 - 60 minutes of cardio right after lifting, and this is what I've been doing:
- 2 Venom pills at 6:00am
- 2 Thyrogen pills at 8:00am

- Lifting at 8:00am
- Cardio at 9:00am

By 9:00am it doesn't take much to send my heart rate through the roof (like 180+).

My main question is, when should I take Thyrogen-X. Should I take it after Venom begins to wear off? Thyrogen helps me sweat, and I want to get a good sweat going during cardio.

Thanks.