Common Drowsiness, Skin rash, Nausea, Vomiting, Diarrhoea, Vertigo.

Expert advice for Thiopental Injection

Take special care if you have heart disease, circulatory problems, anemia, increased pressure in brain, muscle weakness or degeneration, thyroid problems, asthma, burns, shock.
Do not drive or operate machinery especially during the first 24 to 36 hours after the injection as thiopental cause drowsiness and disorientation.
Avoid drinking alcohol or taking other medications that cause drowsiness (eg, sedatives, tranquilizers) while taking thiopental as it may lead to serious side effects.
Ensure that you practice additional pregnancy control methods as thiopental may decrease the effectiveness of the birth control pills.
Use thiopental with caution if you are an elderly patient, as you may be more sensitive to its effects, especially drowsiness, depression, or confusion.
Tell your doctor if you are or planning to become pregnant or are breastfeeding.

Q. How does sodium thiopental work as a truth serum?
Sodium thiopental alters certain functions in the brain to make the person incapable of lying and he/she may speak only the truth.