The usual dosage of Deca – Durabolin is 200-600 mg a week for male and 50 -100 mg per week for women. The duration of a cycle with Deca is varies from 8 to 12 weeks. Deca-Durabolin can be stacked with Anabol / Sustanon and Testosterone for muscle bulk growth. During a cycle and in PCT it can also be stacked with Clomid/Nolvadex . The side effects of Deca – Durabolin include high blood pressure, blood clotting, increased production of the sebaceous gland, acne, headaches and sexual overstimulation, as well as several typical side effects for women like deepening of voice, hirsutism, acne, high libido and, at, hypertrophy of clitoris.
It should not be used concomitantly with medications known to prolong the QTc interval (. 5-HT3 antagonists , tricyclic antidepressants , citalopram , etc.) as this may lead to an increased risk of QTc interval prolongation.   Neither should it be given concurrently with lithium (medication) as it may increase the risk of lithium toxicity and neuroleptic malignant syndrome .    It should not be given concurrently with other antipsychotics due to the potential for this to increase the risk of side effects, especially neurological side effects such as neuroleptic malignant syndrome .    It should be avoided in patients on CNS depressants such as opioids, alcohol and barbiturates.