If you end up running out of meds:

1. Hibiscus tea is so powerful at lowering blood pressure that it may certainly help. As will a big spoonful of cocoa powder and obviously stop drinking anything caffinated.
2. St. John's Wort is what people used to take before Prozac for treating Depression.

Straight away these are two of the biggest issues.

Olive Leaf and Grapefruit Seed Extract kill bacterial infections but most people taking meds can't take the latter as it can either interfere with cytchrome P450 in the liver OR it can potentiate ie make some meds stronger.