D1 stands for 1:10 dilution so (even if those numbers are before dilution) it still contains large amount of active ingredient.
The phrase "large amount" is a value judgement that needs to be quantified, but I'm fairly sure it doesn't qualify in this case.
The dilution numbers of those ingredients is the exponent in the expression 1/(10^n) so D1 is 1/10, D2 is 1/100 and so on. That makes it fairly simple to calculate the amounts of base material that might be present in the final solution.
That's a grand total of 144.1μg of impurities in 1.1g of water per dose. This homeopathic remedy is at least 99.987% carrier liquid - water it seems. None of the quantities of toxic chemicals appear to be particularly dangerous to humans, even if you slugged down the whole pack in one hit. (NB: I'm not suggesting anybody actually do this.)
Even by the twisted logic of homeopathy this stuff is pretty much inactive. The "strongest" homeopathic ingredient in this - again according to homeopathic illogic - is clam shell ground up with lactose.
Personally I think any amount of belladonna is too much, but I'm not going to be too concerned about it at this level.
Since Belladonna is the most obviously toxic of the components, not to mention the easiest to research, I've focused on this. If someone has similar source data for Pulsatilla Pratensis, or any serious information on the effects of dosages of Chamomilla Recutita, feel free to add them in.
The Belladonna article at drugs.com recommends an initial oral dosage of 0.03mg (30μg) of alkaloids in tincture form per kg of body mass per day when used to treat pediatric patients, with a daily limit of 1.05mg for all pediateic patients. The product in question is actually a suppository, the limits of which are not listed for pediatric prescription in the article (unless I missed something). It does however list common concentrations of suppositories at ~203μg of alkaloid with recommendations of no more than 4 doses (812μg) daily.
The initial dosage appears intended to be the minimum at which a the expected effect is likely to be observed. While rectal administration has different absorption rates than oral I think it is reasonable to assume that a 10kg child receiving 1/30th of the oral dosage as a suppository would exhibit little to none of the expected effects.
This is also predicated on the preparation of the formula being from pure alkaloid extracts, which is not definitely the case. The alkaloids make up ~1.2% of the leaf of the plant during budding, or ~1.3% of the roots. If the original preparation contains less than pure alkaloid extracts then the effect out be even further reduced. I grant that a manufacturer may source reasonably pure precursors rather than produce them from scratch however.
If I believed in homeopathy I would hope not, since the impurities from processing would of course counter the benefits of sticking poison in a child's rectum.
In 2017 the FDA found levels of belladonna in teething tablets that exceeded the amound given on the medicine label and promped it to recommend to not use the specific products anymore. The company was asked for a (apparently voluntary) recall of the product and refused.
The specific dosages are available at the FDA website, and are (for example) 1100 nanogram of Atropine, a Belladonna alkaloid. They are present in varying concentrations.