STUD 100 is suitable for most men, but like all medicines it can sometimes cause mild side effects, e.g rash or irritation - If you or your partner develops a rash or irritation stop using the spray.
Only extremely low levels of Lidocaine are absorbed from STUD 100. However, high blood levels of Lidocaine (i.e. 25 times the recommended dose of STUD 100) can cause side effects such as nervousness, dizziness, convulsions, loss of consciousness, as well as effects on the heart and lungs. If any of the side effects become serious, or if you notice any side effects not listed on this website, please tell your doctor or pharmacist.