Many drugs can have an effect on sperm production. Sulfasalazine, a drug that is used in Crohn's disease, is well known to do this. Most hormonal supplements, including anabolic steroids, as well as other street drugs, can have an adverse effect on fertility. Antibiotics, alcohol, and tobacco all have been shown to have some effects on fertility.

According to the National Academy of Sciences’ Institute of Medicine’s 1999 report, Marijuana and Medicine: Assessing the Science Base: "[T]he effect of cannabinoids on the capacity of sperm to fertilize eggs is reversible and is observed at [concentrations] which are higher than those likely to be experienced by marijuana smokers … The well-documented inhibition of reproductive functions by THC is thus not a serious concern for evaluating the short-term medical use of marijua. See similar questions...

Generally, no. However, note that an expiration date of, for example, October 2008, means that the expiration date is the last day of the month, or October 31, 2008. See similar questions...

You might, but fertility treatment is very individual. There is a study on clomiphene citrate that indicates that higher doses are needed for women with a larger body mass index, and a similar finding for gonadatropins. See similar questions...

Some of the tests may be harder to run, but not enough so that you should be frightened. BBWs make higher risk patients for laparoscopy, for example, but it usually can be done by a skilled surgeon. Make sure your doctor is comfortable in doing the surgery on you -- confidence goes a long way! There is also the potential of having trouble seeking medical care from a qualified reproductive endocrinologist or OB/GYN. See similar questions...

The only medications that can cause a false positive on a home pregnancy test are those than contain hCG itself. If you are taking fertility medications with hCG - e.g. Novarel, Profasi, Pregnyl - please consult your doctor regarding appropriate times and circumstances for using our tests. Other fertility drugs and medications that do not contain hCG will not precipitate false positive results. Similarly, progesterone will not cause a false positive as well. See similar questions...

When taking fertility drugs, there is always a chance for multiple births. Dr. Witten, however, can use ultrasound and blood tests to monitor egg production each cycle. Medication can be adjusted to increase or decrease egg production and minimize the risk of multiple birth. See similar questions...

Some promoters of natural or alternative treatments advocate the rejection of conventional medicine. This is totally irresponsible. Drug treatment is, and will remain, an essential tool in the treatment of severe and chronic hypertension. It saves lives. However, drugs do have serious drawbacks. The first problem with medications is determining the correct type of drug and dosage the each particular person. There are an increasing number of drug types, each acting in different ways. See similar questions...

Alcohol in the mother's blood crosses the placenta freely and enters the embryo or fetus through the umbilical cord. The exact mechanism(s) by which alcohol damages the fetus and critical times of exposure are not known; however, exposure during the first trimester results in the structural defects (i.e., facial changes) characteristic of FAS, whereas the growth and CNS disturbances could occur from alcohol use during any time in pregnancy. See similar questions...

You will notice that our tours are planned to avoid times when the weather is less favorable to travel. However it is sometimes inevitable to encounter a range of conditions in areas as Patagonia and the Lake District. See similar questions...

At the beginning they are only of cosmetic concern, but later on they can cause clotting (phlebitis), bleeding, ulcers and severe skin changes (dermatitis). See similar questions...

ADHD can cause a range of problems that can vary from child to child. The following are common among all children with ADHD: bull; They often seem to forget things almost instantly. They fail to finish what they start or don’t do it at all. bull; They often seem to be driven like a motor; as a result they can be demanding in class and even behave dangerously when outside. bull; They may seem thoughtless, selfish and rude, so they are often unpopular with other children their age. See similar questions...

Video monitor problems are usually caused by mis-matches of the monitor and the chosen monitor profile. They are usually characterized by no video on the monitor (this could also be due to the system hanging) or un-synchronized video. If no monitor profile is available for your monitor you may need to choose a generic monitor profile. Before doing this, make sure you know what the maximum horizontal and vertical frequencies of your monitor are. See similar questions...

You may have fertility problems if you have not been able to get pregnant after trying for at least 1 year. Another word for this is infertility. Infertility may not mean that it is impossible to get pregnant. Often, couples conceive without help in their second year of trying. Some do not succeed, but medical treatments help many couples. Age is an important factor if you are trying to decide whether to get testing and treatment for fertility problems. A woman is most fertile in her late 20s. See similar questions...

Speed (amphetamines) and cocaine can cause heart pain, both directly and indirectly by causing panic. It is possible to break an addiction. And occasional relapses does not mean that the addiction cannot eventually be broken completely. See similar questions...

Volume enhancer products do help men with fertility problems such as low sperm count and low sperm motility. However, they also have benefits for any man who wishes to increase his volume of ejaculate and intensity/power/distance of orgasms. See similar questions...

Sometimes doctors can find the cause of a couple's infertility by doing a complete fertility evaluation. This process usually begins with physical exams and health and sexual histories. If there are no obvious problems, like poorly timed intercourse or absence of ovulation, tests will be needed. Finding the cause of infertility is often a long, complex, and emotional process. It can take months for you and your doctor to complete all the needed exams and tests. See similar questions...

No. GenSelect is not a fertility aid and will not help you get pregnant. GenSelect influences your chances of having either a boy or girl before you get pregnant. See similar questions...

Fertility problems can be related to many factors including varicoceles, blockages, infection, hormonal problems, as well as genetic causes. Seeking help from a male fertility specialist is a good start to determining the problem as well as the answer. Thank you Dr. Sandlow...it has been a year, and no pregnancy, so if he didn't go back then he pretty much is sterile right. See similar questions...

Semenax? will not really help men with fertility problems such as low sperm count and low sperm motility (click here for our fertility blend). However, it definitely has benefits for any man who wishes to increase his volume of ejaculate and intensity/power of orgasms. See similar questions...