|Tell your doctor about all medicines and herbal products you are taking. Mercaptopurine interferes with nucleotide interconversion and glycoprotein synthesis. There is insufficient evidence to determine its effects on the breast-fed infant or milk production. Penegra tablets (Generic Sildenafil Citrate) by Zydus Cadila not protect you or your partner from getting sexually transmitted diseases, including HIVвЂ”the virus that causes AIDS. Interactions with other drugs acting on the serotonin system or impairing the metabolism of serotonin may increase the risk of Serotonin Syndrome or Neuroleptic Malignant Syndrome (NMS)-like reaction. Levitra Super Active may cause dizziness, lightheadedness, or fainting; alcohol, hot weather, exercise, or fever may increase these effects.