Penicillins are generally safe, but at
excessively high doses, neurotoxicity or elevation in liver enzymes could be seen.
Even if your blood pressure is normal, don't overdo it with yohimbine because
excessively high doses can have some very negative side effects.
You will not experience aggressive mood swings or «roid rage» unless you use
excessively high doses of testosterone.
Mega doses of some B vitamins can potentially cause nausea, vomiting, diarrhea, and even liver damage in
excessively high doses.
Extended use or
excessively high doses of juniper supplements may cause serious side effects, such as kidney irritation or seizures.