Weight gain is not a known side effect associated with Estroven, according to Drugs.com. Although Estroven has no common side effects when women take the recommended dose, Estroven Maximum Strength has one uncommon and nine rare side effects, notes WebMD.
Stomach cramps are an uncommon side effect of Estroven Maximum Strength, explains WebMD. Rare side effects include rash, itching and bronchospasm, which are rated as severe side effects. Dizziness, nausea and head pain are classified as rare but less severe. Precautions for any formulation of Estroven include for breastfeeding or pregnant women not to take it and to keep it out of the reach of children.
Estroven is a dietary supplement that reduces the effects of hormonal imbalance from perimenopause, menopause and postmenopause, states Drugs.com. These effects include hot flashes, irritability and night sweats. Estroven ingredients include selenium, soybeans, black cohosh root and boron.