Is it useful to take Zi Kidney Fertility Pills to protect the fetus?

Taking Nourishing Kidney and Yuking Fetus Pill to preserve the fetus has certain effects.
Nourishing Kidney and Fetus Repairing Pill is a proprietary Chinese medicine, formulated with Cuscuta chinensis and Radix Rehmanniae Praeparata, which has the effect of tonifying the kidney, strengthening the spleen, nourishing the blood, stabilizing the fetus and strengthening the body; it is mainly used to treat the deficiency of the spleen and kidney, and it can prevent and control the miscarriage of fetus due to the deficiency of the Chong Ren (Chong Ren and Ren veins are weak, which affects the function of fixing and regenerating); Nourishing Kidney and Fetus Repairing Pill can have a beneficial effect on miscarriage of fetus caused by deficiency of the spleen and kidney, as well as the deficiency of Chong Ren.
The adverse effects of Zi Kidney Yuk Fetus Pill are not clear at the moment; note that this medicine should not be used with Coix Seed and mung bean sprouts, and abstain from sexual intercourse while taking the medicine; this medicine is not suitable for patients with cold and fever.
Before using the Chinese patent medicine Zi Kidney Yuk Fetus Pill, should be in the doctor’s evidence under the guidance of the correct standardization of the use, not self-medication, so as not to cause adverse consequences.