How many milligrams would I need to have the real hallucinations that sounds really crazy.
soxsuk6432 Reviewed by soxsuk6432 on . Diphenhydramine Pseudophedrine and DXM My mom just went to the pharmacy and got dextromethorphan, Diphenhydramine, and pseudophedrine for my cough. I was wondering what a good first time dose of Diphenhydramine is. What is a pseudophedrine dose for first timers(not ephedrine)? And also is grapefruit juice effective with DXM like people say because I only have 400mg and I feel like a high 3rd plateu dose. Rating: 5