Most side effects stemming from generic Isoptin medication are mild and related to low blood pressure, such as dizziness, fainting, and weakness. Until the personal impact of the drug is determined, people that buy Isoptin it should abstain from operating heavy machinery (like driving). Though uncommon, some people are allergic to verapamil, so patients taking the drug for the first time should look out for signs of an allergic reaction: hives, breathing problems or swelling of the face, tongue or throat. It is known that this drug passes through the placenta of pregnant women and affects the fetus, though the specific consequences of this effect are undetermined; therefore, it is usually not recommended for women carrying unborn babies to buy Isoptin.