No, Osteofos 70 Tablet (alendronate sodium) does not typically cause heavy periods. This is not a known or documented side effect. If you're experiencing heavy bleeding, it's likely due to other factors such as hormonal changes or uterine conditions, and you should consult a doctor.

Osteofos Tablet contains Alendronate sodium and is used to treat osteoporosis (thin or weak bones). It is unlikely to affect your menstrual cycle or cause irregular periods. However, if you experience any irregular periods or other menstrual problems while taking this medicine, please consult your doctor. They can help determine the cause and provide appropriate treatment.