Any drug can provoke allergic response. Every one is unique and different. So some individuals give individual response to the given drug. All the drugs can give allergic response in some individuals. Some drugs are more prone to give allergic response. No drug is designed to give an allergic response. It will not be called as drug in that case.
Antigens
To provide an accurate response, I would need more context about the specific situation or text involving Higgins. If you could provide details about the scenario or the characters involved, I would be happy to help explain what provokes his response.
The simplest behavior where a stimulus provokes an atomic response is a reflex. This is an involuntary, automatic response to a stimulus without conscious thought. For example, when your hand touches a hot surface, your reflex action is to pull your hand away immediately.
what is an altered drug response
If you are allergic to penicillin, you may also be allergic to other "cillins", such as amoxicillin, and others.
Allergies are not specific to a substance or drug, side-effects are. Allergic reactions run patient by patient. They can include rash, itching, fuzzy/itching feeling in tongue/throat, and in severe cases problems breathing or swallowing.
Allergic Response
Histamine
kw killer. sr crue
it is a drug that can cause euphoria and allergic reaction
Antihistamine, I think...
It's general biochemical name is an Antigen - anti = against and gen = genesis.