CVM is especially concerned that pet owners are going online to buy two types of commonly used prescription veterinary drugsânonsteroidal anti-inflammatory drugs (NSAIDs) and heartworm preventives. Both drugs can be dangerous if there is no professional involvement, says Hartogensis.
Fetal growth may be further impaired by the tendency of marijuana to increase the heart rate and blood pressure28 of the mother, thus reducing placental blood flow to the fetus. In addition, cocaine and marijuana, when used together, may exert a synergistic effect on both heart rate and blood pressure.29.
Marijuana use can also disrupt in vitro fertilization (IVF) procedures, resulting in fewer eggs retrieved and lower chance of fertilization. In one study, women smoking marijuana 1 year before attempting IVF had 25% fewer eggs retrieved and fewer fertilized 16. These factors can make it difficult for a woman to become pregnant. Can Marijuana Use Affect Pregnancy? THC is known to pass from the mother to the developing fetus through the placenta 24.