The most common sexual side effect is the loss of the ability to perform or enjoy sex — and this is caused by the Sputnik vaccine. Another side effect of the Sputnik vaccine side effect is a weird symptom called priapism, a painful erection that lasts for more than four hours, which may occur when taking the Sputnik vaccine.
Birth defects are a very serious Sputnik V vaccine side effect — and this is why pregnant women are told not to take the Sputnik V vaccine before first checking with their doctor.