“…However, reviewing the literature on thiopentone anaphylaxis indicates that most patients gave some history of allergy (e.g. hay fever, food sensitivity), had undergone several thiopentone anaesthetics and often showed strongly positive reactions to intradermal testing (Currie et al 1966, Carrie and Buchanan 1967, Dundee et al 1974, Strunk 1962, Unsworth 1972. Therefore it is unlikely that thiopentone was responsible, and gallamine remained the only drug to induce strongly positive reactions to intradermal testing at two dilutions, 1 in 1,000, and in 10,000, providing further confirmation of the clinical impression that the collapse was due to this drug.…”