Drugs and supplements during pregnancy and lactation
Which
preparations can be safely used in pregnant and lactating women?
How
is it known that the drug taken by the mother will not hurt the child?
Each medicine sold has one of the
safety categories for use during pregnancy, given to it by the American
Food and Drug Administration (FDA). This category allows to determine the
degree of risk of taking a given preparation and its possible harmful effect on
a child. Information on the category can be found on the medicines leaflets.
Based on data from the Drug
Information Center.
Category
A
These
are medicines that have been tested in pregnant women and have not shown any
harmful effects on the fetus.
• Herbal
preparations: Urosept , Neospasmina , Pyrosal , Fitolizine , Alitol , Hedelix ,
Marshmallow syrup
• Vitamin
preparations (some B vitamins, folic acid) and Magnesium-calcium preparations
(eg Asmag)
• Calcium-magnesium
neutralizing preparations (e.g. Rennie)
• homeopathic
medicines
B
category
Drugs
with which animal experiments have been carried out did not show harmful
effects on the fetus, however, no controls were performed in pregnant women,
or
Drugs
whose harmful effects on the fetus have been found on animals, but have not
been confirmed in pregnant women.
• analgesics
eg ibuprofen (Nurofen, Advil), ketoprofen (Profenid , Ketonal );
• antibiotics,
e.g. amoxicillin (Amotaks, Duomox, Ospamox) • drugs
used in respiratory diseases: ambroxol (Mucosolvan, Deflegmin ), bromhexine (
Flegamine ), acetylcysteine ( ACC , Fluimucil );
• anti-allergic
drugs: clemastine, loratadine (Claritine),
• drugs
in hypertension, e.g. methyldopa (Dopegyt)
• medicines
in diseases of the gastrointestinal tract: cimetidine (Altramet), sucralfate (Ulgastran
, Venter ), loperamide ( Laremid )
Category
C
Animal
studies have shown adverse effects of fetal medications, but there are no
adequate and controlled studies in pregnant women
or
Drugs
that have not been adequately controlled on animals and the lack of adequate
and controlled tests in pregnant women.
These medicines can only be used in cases where the benefit of using them in the mothers outweighs the risk of unwanted effects in the fetus.
• painkillers:
acetylsalicylic acid (Aspirin, Polopiryna , Upsarin ) - I and II trimester ,
tramadol ( Tramal ), Pyralgina
• antivirals:
aciclovir (Zovirax , Antivir , Heviran ). Antifungal agents: ketoconazole (
Nizoral ) and antibacterial (Klacid, Fromilid , Biseptol, Bactrim, Cipronex,
Nolicin)
• drugs used in
respiratory diseases: dextromethorphan ( Acodin ), guajafenesine ( Guajazyl ,
Robitussin ), phenylephrine ( Coldrex , Rhinopront), theophylline ( Euphyllin ,
Theospirex ), naphazoline ( Rhinazin , Sulfarinol ), oxymetazoline ( Acatar ,
Nasivin , Oxalin , Resoxym ) , tetryzolina (Tyzine, Visine )
• antiallergics :
antazoline (Phenazolinum), astemizole, chlorfeniramina ( Tabcin )
• drugs in
hypertension, e.g. amlodipine ( Amlopin , Amlozek , Norvasc )
• medicines in
diseases of the gastrointestinal tract: omeprazole ( Losec , Polprazol , Gasec
)
• vitamins A, D, B12,
iron
Category
D
Adequate
and controlled studies or observations have shown that these medicines during
pregnancy are a threat to the fetus.
Drugs
in this category can be used in pregnant women in conditions threatening the
life of the mother and only in cases when medicaments of categories A, B, C cannot
be used or are ineffective.
- antibacterial agent’s chloramphenicol (Detreromycin),
doxycycline
• sedatives
and sleeping pills: lorazepam (Lorafen), clonazepam, diazepam (Relanium),
haloperidol
• drugs
in diseases of the circulatory system: acenocoumarol, enalapril ( Enarenal ,
Mapryl , Enap ), amiodarone, azathioprine
• antiepileptic
drugs: phenytoin, valproic acid (Convulex , Depakine )
• anticancer
drugs: cyclophosphamide, fluorouracil
Category
X
Drugs
with proven harmful effects on the fetus.
The
use of these drugs is absolutely contraindicated in pregnant women or women who
can and want to get pregnant.
- sedatives and sleeping pills: estazolam, temazepam (Signopam)
- anticancer drugs:
methotrexate
- antithyroid drugs:
methylthiouracil
- vitamin A derivative
Is
the use of a drug in a category other than A contraindicated during pregnancy?
There are chronic diseases
(such as epilepsy, hypertension, asthma) in which prescribed drugs have a
category other than A. However, discontinuation of medications for
this type of disease may prove to be more dangerous for the life of the
unborn child than the preparation itself. Therefore, for women with chronic
diseases, the decision about pregnancy should be a conscious decision, which
will be preceded by a discussion with the doctor about the risks and possible
problems during pregnancy. In the case of some diseases (eg epilepsy, diabetes
type II) newer generations are forbidden in favor of the elderly (eg epilepsy
is usually prescribed for a well-known carbamazepine) or replaced with
alternative therapy (eg for diabetes, antidiabetic drugs are withdrawn) and
gives insulin).
What
determines the safety of the drug during pregnancy and lactation?
The safety of a drug during
pregnancy and lactation is determined by the degree to which it passes
through the placenta or the degree to which it passes into breast milk,
where medicines that are potentially safe during pregnancy may have side
effects during feeding.
The ease of penetration into the
blood of the fetus or breast milk depends on many factors determining the properties
of the drug (e.g. compounds with very good solubility in fats penetrate the
placenta more easily than those soluble in water, and compounds with high
molecular weight - insulin and heparin - not they are able to penetrate the
blood of the fetus). In addition, the placenta can break down some medicines
so that they will not be present in the baby's blood (e.g. prednisolone)
Are
drugs and dietary supplements safe for pregnant women and nursing mothers?
It
is widely believed that women during pregnancy and lactation should reduce the
intake of non-prescription drugs and supplements to a minimum. Some formulas
are recommended for future mothers (e.g. folic acid supplementation to prevent
developmental defects in a child, or supplementation with preparations
containing probiotic bacteria Lactobacillus rhamnosus GG (Dicoflor) during the
last trimester of pregnancy to reduce the risk of allergies in a child).
When
choosing a preparation written by the attending physician it is worth paying
attention to whether the drug has the status of a drug or a dietary supplement
(e.g. folic acid at a dose of 0.4 mg occurs in preparations with the status of
the drug Folik and dietary supplement Puritan's Pride). Dietary supplements as food products are not subjected to
such detailed research before being marketed as medicines.
And
what about the problems that arise during pregnancy?
Pregnancy is a real challenge for
women. During these nine months there may be numerous ailments with which we
had no problem before. In some women, there are problems resulting from changes
in hormone levels (estrogen and progesterone) and gradual child growth:
- nausea, vomiting, heartburn, constipation, appetite
disorders
- frequent urination, bacterial infections
- fatigue, irritability, excitability, insomnia
- pain of the mammary glands
- bleeding and gingivitis, caries
- back pain, leg edema, varicose veins
- hemorrhoids
- pregnancy discolorations on the skin (most often on the
face)
- dermatoses, tightening of cellulite
- fainting
- headaches, sometimes exacerbation of migraines
- weakness and hair loss
How
to deal with problems of pregnancy and breastfeeding?
Although
there are drugs and preparations specifically designed for pregnant women and
nursing mothers (e.g. Prenalen syrup for a cold, Mustela cosmetics series,
Elasti-Q), most of the drugs available in the pharmacy are not recommended for
this group of patients.
Herb
preparations seem the safest, although there are absolutely contraindicated
plants in pregnancy (e.g. laxative Xenna, Radirex, Figure 1, which can cause
miscarriage!).
If you are already deciding to take herbs, it is
best to use these in the form of teas.
Also safe are drugs that work in the gastrointestinal
tract, which are virtually non-absorbed into the bloodstream (antacids, e.g.
Rennie, drugs p / flatulence, eg Espumisan , Esputicon , drugs used in food
poisoning, e.g., Medicinal Coal , Smecta ).
For more serious ailments, it is always better to
choose topical preparations (ointments, sprays), avoiding taking drugs that
work in general (tablets).
If
you want to use pharmacy preparations during pregnancy, please consult your
doctor or pharmacist. Thanks to this, our doubts about the safety of a given
product will be dispelled.
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