Health - Nausea?

[bewilderment]

So, swim and her wife tried ketamine via intramuscular injection not long ago. They both had approximately 90mg each. Swim experienced no particularly remarkable effects. However, swim's wife seemed to K-hole, but around the half hour mark she suddenly became very nauseous. She spent the majority of the rest of the trip vomiting up everything in her stomach.

Swim wants to IM ketamine again at a higher dosage, but is concerned about the nausea after seeing her wife's reaction (although she reported a very nice and intense trip). Swim knows that her wife tends to have a weaker stomach than swim when it comes to chemicals so I'm wondering how common it is to vomit when using ketamine through IM.

Does anyone have any suggestions about how to reduce the nausea? Swim was considering taking one dramamine (the less drowsy version) but doesn't know how safe that would be, any ideas?

Also, swim used the deltoid muscle as the injection site and knows that one is only supposed to use up to 1cc of liquid in this area. She recalls reading somewhere of a person using two injections sites, injecting half in one area and the other half in a different area. He reported that the effects were "smoother" that way. Could the nausea have anything to do with the fact that a full dosage is being administered in 1cc in this particular muscle? Or, does anyone have an opinion about using two injection sites?